68872840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{24251}}^1$

素因数の和:24333

約数の個数: 32

約数和(自身を含む): 157152960

約数和(自身を除く): 88280120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 24251, 48502, 97004, 121255, 194008, 242510, 485020, 970040, 1721821, 3443642, 6887284, 8609105, 13774568, 17218210, 34436420, 68872840]

約数ペア:

[(1, 68872840), (2, 34436420), (4, 17218210), (5, 13774568), (8, 8609105), (10, 6887284), (20, 3443642), (40, 1721821), (71, 970040), (142, 485020), (284, 242510), (355, 194008), (568, 121255), (710, 97004), (1420, 48502), (2840, 24251)]