198178040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2251}}^1$

素因数の和:2364

約数の個数: 64

約数和(自身を含む): 466974720

約数和(自身を除く): 268796680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 710, 1240, 1420, 2201, 2251, 2840, 4402, 4502, 8804, 9004, 11005, 11255, 17608, 18008, 22010, 22510, 44020, 45020, 69781, 88040, 90040, 139562, 159821, 279124, 319642, 348905, 558248, 639284, 697810, 799105, 1278568, 1395620, 1598210, 2791240, 3196420, 4954451, 6392840, 9908902, 19817804, 24772255, 39635608, 49544510, 99089020, 198178040]

約数ペア:

[(1, 198178040), (2, 99089020), (4, 49544510), (5, 39635608), (8, 24772255), (10, 19817804), (20, 9908902), (31, 6392840), (40, 4954451), (62, 3196420), (71, 2791240), (124, 1598210), (142, 1395620), (155, 1278568), (248, 799105), (284, 697810), (310, 639284), (355, 558248), (568, 348905), (620, 319642), (710, 279124), (1240, 159821), (1420, 139562), (2201, 90040), (2251, 88040), (2840, 69781), (4402, 45020), (4502, 44020), (8804, 22510), (9004, 22010), (11005, 18008), (11255, 17608)]