8892040

素因数分解:

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

素因数の和:214

約数の個数: 64

約数和(自身を含む): 21150720

約数和(自身を除く): 12258680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 101, 124, 142, 155, 202, 248, 284, 310, 355, 404, 505, 568, 620, 710, 808, 1010, 1240, 1420, 2020, 2201, 2840, 3131, 4040, 4402, 6262, 7171, 8804, 11005, 12524, 14342, 15655, 17608, 22010, 25048, 28684, 31310, 35855, 44020, 57368, 62620, 71710, 88040, 125240, 143420, 222301, 286840, 444602, 889204, 1111505, 1778408, 2223010, 4446020, 8892040]

約数ペア:

[(1, 8892040), (2, 4446020), (4, 2223010), (5, 1778408), (8, 1111505), (10, 889204), (20, 444602), (31, 286840), (40, 222301), (62, 143420), (71, 125240), (101, 88040), (124, 71710), (142, 62620), (155, 57368), (202, 44020), (248, 35855), (284, 31310), (310, 28684), (355, 25048), (404, 22010), (505, 17608), (568, 15655), (620, 14342), (710, 12524), (808, 11005), (1010, 8804), (1240, 7171), (1420, 6262), (2020, 4402), (2201, 4040), (2840, 3131)]