97812440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 253808640

約数和(自身を除く): 155996200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 71, 88, 101, 110, 124, 142, 155, 202, 220, 248, 284, 310, 341, 355, 404, 440, 505, 568, 620, 682, 710, 781, 808, 1010, 1111, 1240, 1364, 1420, 1562, 1705, 2020, 2201, 2222, 2728, 2840, 3124, 3131, 3410, 3905, 4040, 4402, 4444, 5555, 6248, 6262, 6820, 7171, 7810, 8804, 8888, 11005, 11110, 12524, 13640, 14342, 15620, 15655, 17608, 22010, 22220, 24211, 25048, 28684, 31240, 31310, 34441, 35855, 44020, 44440, 48422, 57368, 62620, 68882, 71710, 78881, 88040, 96844, 121055, 125240, 137764, 143420, 157762, 172205, 193688, 222301, 242110, 275528, 286840, 315524, 344410, 394405, 444602, 484220, 631048, 688820, 788810, 889204, 968440, 1111505, 1377640, 1577620, 1778408, 2223010, 2445311, 3155240, 4446020, 4890622, 8892040, 9781244, 12226555, 19562488, 24453110, 48906220, 97812440]

約数ペア:

[(1, 97812440), (2, 48906220), (4, 24453110), (5, 19562488), (8, 12226555), (10, 9781244), (11, 8892040), (20, 4890622), (22, 4446020), (31, 3155240), (40, 2445311), (44, 2223010), (55, 1778408), (62, 1577620), (71, 1377640), (88, 1111505), (101, 968440), (110, 889204), (124, 788810), (142, 688820), (155, 631048), (202, 484220), (220, 444602), (248, 394405), (284, 344410), (310, 315524), (341, 286840), (355, 275528), (404, 242110), (440, 222301), (505, 193688), (568, 172205), (620, 157762), (682, 143420), (710, 137764), (781, 125240), (808, 121055), (1010, 96844), (1111, 88040), (1240, 78881), (1364, 71710), (1420, 68882), (1562, 62620), (1705, 57368), (2020, 48422), (2201, 44440), (2222, 44020), (2728, 35855), (2840, 34441), (3124, 31310), (3131, 31240), (3410, 28684), (3905, 25048), (4040, 24211), (4402, 22220), (4444, 22010), (5555, 17608), (6248, 15655), (6262, 15620), (6820, 14342), (7171, 13640), (7810, 12524), (8804, 11110), (8888, 11005)]