620281480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:324

約数の個数: 256

約数和(自身を含む): 1857945600

約数和(自身を除く): 1237664120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 23, 26, 28, 31, 35, 40, 46, 52, 56, 62, 65, 70, 91, 92, 104, 115, 124, 130, 140, 155, 161, 182, 184, 217, 230, 239, 248, 260, 280, 299, 310, 322, 364, 403, 434, 455, 460, 478, 520, 598, 620, 644, 713, 728, 805, 806, 868, 910, 920, 956, 1085, 1195, 1196, 1240, 1288, 1426, 1495, 1610, 1612, 1673, 1736, 1820, 1912, 2015, 2093, 2170, 2390, 2392, 2821, 2852, 2990, 3107, 3220, 3224, 3346, 3565, 3640, 4030, 4186, 4340, 4780, 4991, 5497, 5642, 5704, 5980, 6214, 6440, 6692, 7130, 7409, 8060, 8365, 8372, 8680, 9269, 9560, 9982, 10465, 10994, 11284, 11960, 12428, 13384, 14105, 14260, 14818, 15535, 16120, 16730, 16744, 18538, 19964, 20930, 21749, 21988, 22568, 24856, 24955, 27485, 28210, 28520, 29636, 31070, 33460, 37045, 37076, 38479, 39928, 41860, 43498, 43976, 46345, 49910, 51863, 54970, 56420, 59272, 62140, 64883, 66920, 71461, 74090, 74152, 76958, 83720, 86996, 92690, 96317, 99820, 103726, 108745, 109940, 112840, 124280, 129766, 142922, 148180, 153916, 170407, 173992, 185380, 192395, 192634, 199640, 207452, 217490, 219880, 259315, 259532, 285844, 296360, 307832, 324415, 340814, 357305, 370760, 384790, 385268, 414904, 434980, 481585, 500227, 518630, 519064, 571688, 648830, 674219, 681628, 714610, 769580, 770536, 852035, 869960, 963170, 1000454, 1037260, 1192849, 1297660, 1348438, 1363256, 1429220, 1539160, 1704070, 1926340, 2000908, 2074520, 2215291, 2385698, 2501135, 2595320, 2696876, 2858440, 3371095, 3408140, 3852680, 4001816, 4430582, 4771396, 5002270, 5393752, 5964245, 6742190, 6816280, 8861164, 9542792, 10004540, 11076455, 11928490, 13484380, 15507037, 17722328, 20009080, 22152910, 23856980, 26968760, 31014074, 44305820, 47713960, 62028148, 77535185, 88611640, 124056296, 155070370, 310140740, 620281480]

約数ペア:

[(1, 620281480), (2, 310140740), (4, 155070370), (5, 124056296), (7, 88611640), (8, 77535185), (10, 62028148), (13, 47713960), (14, 44305820), (20, 31014074), (23, 26968760), (26, 23856980), (28, 22152910), (31, 20009080), (35, 17722328), (40, 15507037), (46, 13484380), (52, 11928490), (56, 11076455), (62, 10004540), (65, 9542792), (70, 8861164), (91, 6816280), (92, 6742190), (104, 5964245), (115, 5393752), (124, 5002270), (130, 4771396), (140, 4430582), (155, 4001816), (161, 3852680), (182, 3408140), (184, 3371095), (217, 2858440), (230, 2696876), (239, 2595320), (248, 2501135), (260, 2385698), (280, 2215291), (299, 2074520), (310, 2000908), (322, 1926340), (364, 1704070), (403, 1539160), (434, 1429220), (455, 1363256), (460, 1348438), (478, 1297660), (520, 1192849), (598, 1037260), (620, 1000454), (644, 963170), (713, 869960), (728, 852035), (805, 770536), (806, 769580), (868, 714610), (910, 681628), (920, 674219), (956, 648830), (1085, 571688), (1195, 519064), (1196, 518630), (1240, 500227), (1288, 481585), (1426, 434980), (1495, 414904), (1610, 385268), (1612, 384790), (1673, 370760), (1736, 357305), (1820, 340814), (1912, 324415), (2015, 307832), (2093, 296360), (2170, 285844), (2390, 259532), (2392, 259315), (2821, 219880), (2852, 217490), (2990, 207452), (3107, 199640), (3220, 192634), (3224, 192395), (3346, 185380), (3565, 173992), (3640, 170407), (4030, 153916), (4186, 148180), (4340, 142922), (4780, 129766), (4991, 124280), (5497, 112840), (5642, 109940), (5704, 108745), (5980, 103726), (6214, 99820), (6440, 96317), (6692, 92690), (7130, 86996), (7409, 83720), (8060, 76958), (8365, 74152), (8372, 74090), (8680, 71461), (9269, 66920), (9560, 64883), (9982, 62140), (10465, 59272), (10994, 56420), (11284, 54970), (11960, 51863), (12428, 49910), (13384, 46345), (14105, 43976), (14260, 43498), (14818, 41860), (15535, 39928), (16120, 38479), (16730, 37076), (16744, 37045), (18538, 33460), (19964, 31070), (20930, 29636), (21749, 28520), (21988, 28210), (22568, 27485), (24856, 24955)]