1620941640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:292

約数の個数: 256

約数和(自身を含む): 5237637120

約数和(自身を除く): 3616695480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 47, 60, 62, 73, 93, 94, 120, 124, 127, 141, 146, 155, 186, 188, 219, 235, 248, 254, 282, 292, 310, 365, 372, 376, 381, 438, 465, 470, 508, 564, 584, 620, 635, 705, 730, 744, 762, 876, 930, 940, 1016, 1095, 1128, 1240, 1270, 1410, 1457, 1460, 1524, 1752, 1860, 1880, 1905, 2190, 2263, 2540, 2820, 2914, 2920, 3048, 3431, 3720, 3810, 3937, 4371, 4380, 4526, 5080, 5640, 5828, 5969, 6789, 6862, 7285, 7620, 7874, 8742, 8760, 9052, 9271, 10293, 11315, 11656, 11811, 11938, 13578, 13724, 14570, 15240, 15748, 17155, 17484, 17907, 18104, 18542, 19685, 20586, 21855, 22630, 23622, 23876, 27156, 27448, 27813, 29140, 29845, 31496, 33945, 34310, 34968, 35814, 37084, 39370, 41172, 43710, 45260, 46355, 47244, 47752, 51465, 54312, 55626, 58280, 59055, 59690, 67890, 68620, 71628, 74168, 78740, 82344, 87420, 89535, 90520, 92710, 94488, 102930, 106361, 111252, 118110, 119380, 135780, 137240, 139065, 143256, 157480, 174840, 179070, 185039, 185420, 205860, 212722, 222504, 236220, 238760, 271560, 278130, 287401, 319083, 358140, 370078, 370840, 411720, 425444, 435737, 472440, 531805, 555117, 556260, 574802, 638166, 716280, 740156, 850888, 862203, 871474, 925195, 1063610, 1110234, 1112520, 1149604, 1276332, 1307211, 1437005, 1480312, 1595415, 1724406, 1742948, 1850390, 2127220, 2178685, 2220468, 2299208, 2552664, 2614422, 2775585, 2874010, 3190830, 3448812, 3485896, 3700780, 4254440, 4311015, 4357370, 4440936, 5228844, 5551170, 5748020, 6381660, 6536055, 6897624, 7401560, 8622030, 8714740, 10457688, 11102340, 11496040, 12763320, 13072110, 13507847, 17244060, 17429480, 22204680, 26144220, 27015694, 34488120, 40523541, 52288440, 54031388, 67539235, 81047082, 108062776, 135078470, 162094164, 202617705, 270156940, 324188328, 405235410, 540313880, 810470820, 1620941640]

約数ペア:

[(1, 1620941640), (2, 810470820), (3, 540313880), (4, 405235410), (5, 324188328), (6, 270156940), (8, 202617705), (10, 162094164), (12, 135078470), (15, 108062776), (20, 81047082), (24, 67539235), (30, 54031388), (31, 52288440), (40, 40523541), (47, 34488120), (60, 27015694), (62, 26144220), (73, 22204680), (93, 17429480), (94, 17244060), (120, 13507847), (124, 13072110), (127, 12763320), (141, 11496040), (146, 11102340), (155, 10457688), (186, 8714740), (188, 8622030), (219, 7401560), (235, 6897624), (248, 6536055), (254, 6381660), (282, 5748020), (292, 5551170), (310, 5228844), (365, 4440936), (372, 4357370), (376, 4311015), (381, 4254440), (438, 3700780), (465, 3485896), (470, 3448812), (508, 3190830), (564, 2874010), (584, 2775585), (620, 2614422), (635, 2552664), (705, 2299208), (730, 2220468), (744, 2178685), (762, 2127220), (876, 1850390), (930, 1742948), (940, 1724406), (1016, 1595415), (1095, 1480312), (1128, 1437005), (1240, 1307211), (1270, 1276332), (1410, 1149604), (1457, 1112520), (1460, 1110234), (1524, 1063610), (1752, 925195), (1860, 871474), (1880, 862203), (1905, 850888), (2190, 740156), (2263, 716280), (2540, 638166), (2820, 574802), (2914, 556260), (2920, 555117), (3048, 531805), (3431, 472440), (3720, 435737), (3810, 425444), (3937, 411720), (4371, 370840), (4380, 370078), (4526, 358140), (5080, 319083), (5640, 287401), (5828, 278130), (5969, 271560), (6789, 238760), (6862, 236220), (7285, 222504), (7620, 212722), (7874, 205860), (8742, 185420), (8760, 185039), (9052, 179070), (9271, 174840), (10293, 157480), (11315, 143256), (11656, 139065), (11811, 137240), (11938, 135780), (13578, 119380), (13724, 118110), (14570, 111252), (15240, 106361), (15748, 102930), (17155, 94488), (17484, 92710), (17907, 90520), (18104, 89535), (18542, 87420), (19685, 82344), (20586, 78740), (21855, 74168), (22630, 71628), (23622, 68620), (23876, 67890), (27156, 59690), (27448, 59055), (27813, 58280), (29140, 55626), (29845, 54312), (31496, 51465), (33945, 47752), (34310, 47244), (34968, 46355), (35814, 45260), (37084, 43710), (39370, 41172)]