640515960

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:347

約数の個数: 384

約数和(自身を含む): 2550113280

約数和(自身を除く): 1909597320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 43, 45, 46, 56, 60, 63, 69, 70, 72, 84, 86, 90, 92, 105, 115, 120, 126, 129, 138, 140, 161, 168, 172, 180, 184, 207, 210, 215, 230, 252, 257, 258, 276, 280, 301, 315, 322, 344, 345, 360, 387, 414, 420, 430, 460, 483, 504, 514, 516, 552, 602, 630, 644, 645, 690, 771, 774, 805, 828, 840, 860, 903, 920, 966, 989, 1028, 1032, 1035, 1204, 1260, 1285, 1288, 1290, 1380, 1449, 1505, 1542, 1548, 1610, 1656, 1720, 1799, 1806, 1932, 1935, 1978, 2056, 2070, 2313, 2408, 2415, 2520, 2570, 2580, 2709, 2760, 2898, 2967, 3010, 3084, 3096, 3220, 3598, 3612, 3855, 3864, 3870, 3956, 4140, 4515, 4626, 4830, 4945, 5140, 5160, 5397, 5418, 5796, 5911, 5934, 6020, 6168, 6440, 6923, 7196, 7224, 7245, 7710, 7740, 7912, 8280, 8901, 8995, 9030, 9252, 9660, 9890, 10280, 10794, 10836, 11051, 11565, 11592, 11822, 11868, 12040, 13545, 13846, 14392, 14490, 14835, 15420, 15480, 16191, 17733, 17802, 17990, 18060, 18504, 19320, 19780, 20769, 21588, 21672, 22102, 23130, 23644, 23736, 26985, 27090, 27692, 28980, 29555, 29670, 30840, 32382, 33153, 34615, 35466, 35604, 35980, 36120, 39560, 41377, 41538, 43176, 44204, 44505, 46260, 47288, 53199, 53970, 54180, 55255, 55384, 57960, 59110, 59340, 62307, 64764, 66306, 69230, 70932, 71208, 71960, 77357, 80955, 82754, 83076, 88408, 88665, 89010, 92520, 99459, 103845, 106398, 107940, 108360, 110510, 118220, 118680, 124131, 124614, 129528, 132612, 138460, 141864, 154714, 161910, 165508, 165765, 166152, 177330, 178020, 198918, 206885, 207690, 212796, 215880, 221020, 232071, 236440, 248262, 249228, 254173, 265224, 265995, 276920, 309428, 311535, 323820, 331016, 331530, 354660, 356040, 372393, 386785, 397836, 413770, 415380, 425592, 442040, 464142, 496524, 497295, 498456, 508346, 531990, 618856, 620655, 623070, 647640, 663060, 696213, 709320, 744786, 762519, 773570, 795672, 827540, 830760, 928284, 993048, 994590, 1016692, 1063980, 1160355, 1241310, 1246140, 1270865, 1326120, 1392426, 1489572, 1525038, 1547140, 1655080, 1779211, 1856568, 1861965, 1989180, 2033384, 2127960, 2287557, 2320710, 2482620, 2492280, 2541730, 2784852, 2979144, 3050076, 3094280, 3481065, 3558422, 3723930, 3812595, 3978360, 4575114, 4641420, 4965240, 5083460, 5337633, 5569704, 6100152, 6962130, 7116844, 7447860, 7625190, 8896055, 9150228, 9282840, 10166920, 10675266, 11437785, 13924260, 14233688, 14895720, 15250380, 16012899, 17792110, 18300456, 21350532, 22875570, 26688165, 27848520, 30500760, 32025798, 35584220, 42701064, 45751140, 53376330, 64051596, 71168440, 80064495, 91502280, 106752660, 128103192, 160128990, 213505320, 320257980, 640515960]

約数ペア:

[(1, 640515960), (2, 320257980), (3, 213505320), (4, 160128990), (5, 128103192), (6, 106752660), (7, 91502280), (8, 80064495), (9, 71168440), (10, 64051596), (12, 53376330), (14, 45751140), (15, 42701064), (18, 35584220), (20, 32025798), (21, 30500760), (23, 27848520), (24, 26688165), (28, 22875570), (30, 21350532), (35, 18300456), (36, 17792110), (40, 16012899), (42, 15250380), (43, 14895720), (45, 14233688), (46, 13924260), (56, 11437785), (60, 10675266), (63, 10166920), (69, 9282840), (70, 9150228), (72, 8896055), (84, 7625190), (86, 7447860), (90, 7116844), (92, 6962130), (105, 6100152), (115, 5569704), (120, 5337633), (126, 5083460), (129, 4965240), (138, 4641420), (140, 4575114), (161, 3978360), (168, 3812595), (172, 3723930), (180, 3558422), (184, 3481065), (207, 3094280), (210, 3050076), (215, 2979144), (230, 2784852), (252, 2541730), (257, 2492280), (258, 2482620), (276, 2320710), (280, 2287557), (301, 2127960), (315, 2033384), (322, 1989180), (344, 1861965), (345, 1856568), (360, 1779211), (387, 1655080), (414, 1547140), (420, 1525038), (430, 1489572), (460, 1392426), (483, 1326120), (504, 1270865), (514, 1246140), (516, 1241310), (552, 1160355), (602, 1063980), (630, 1016692), (644, 994590), (645, 993048), (690, 928284), (771, 830760), (774, 827540), (805, 795672), (828, 773570), (840, 762519), (860, 744786), (903, 709320), (920, 696213), (966, 663060), (989, 647640), (1028, 623070), (1032, 620655), (1035, 618856), (1204, 531990), (1260, 508346), (1285, 498456), (1288, 497295), (1290, 496524), (1380, 464142), (1449, 442040), (1505, 425592), (1542, 415380), (1548, 413770), (1610, 397836), (1656, 386785), (1720, 372393), (1799, 356040), (1806, 354660), (1932, 331530), (1935, 331016), (1978, 323820), (2056, 311535), (2070, 309428), (2313, 276920), (2408, 265995), (2415, 265224), (2520, 254173), (2570, 249228), (2580, 248262), (2709, 236440), (2760, 232071), (2898, 221020), (2967, 215880), (3010, 212796), (3084, 207690), (3096, 206885), (3220, 198918), (3598, 178020), (3612, 177330), (3855, 166152), (3864, 165765), (3870, 165508), (3956, 161910), (4140, 154714), (4515, 141864), (4626, 138460), (4830, 132612), (4945, 129528), (5140, 124614), (5160, 124131), (5397, 118680), (5418, 118220), (5796, 110510), (5911, 108360), (5934, 107940), (6020, 106398), (6168, 103845), (6440, 99459), (6923, 92520), (7196, 89010), (7224, 88665), (7245, 88408), (7710, 83076), (7740, 82754), (7912, 80955), (8280, 77357), (8901, 71960), (8995, 71208), (9030, 70932), (9252, 69230), (9660, 66306), (9890, 64764), (10280, 62307), (10794, 59340), (10836, 59110), (11051, 57960), (11565, 55384), (11592, 55255), (11822, 54180), (11868, 53970), (12040, 53199), (13545, 47288), (13846, 46260), (14392, 44505), (14490, 44204), (14835, 43176), (15420, 41538), (15480, 41377), (16191, 39560), (17733, 36120), (17802, 35980), (17990, 35604), (18060, 35466), (18504, 34615), (19320, 33153), (19780, 32382), (20769, 30840), (21588, 29670), (21672, 29555), (22102, 28980), (23130, 27692), (23644, 27090), (23736, 26985)]