7990340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 18071424

約数和(自身を除く): 10081084

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 170, 284, 331, 340, 355, 662, 710, 1207, 1324, 1420, 1655, 2414, 3310, 4828, 5627, 6035, 6620, 11254, 12070, 22508, 23501, 24140, 28135, 47002, 56270, 94004, 112540, 117505, 235010, 399517, 470020, 799034, 1598068, 1997585, 3995170, 7990340]

約数ペア:

[(1, 7990340), (2, 3995170), (4, 1997585), (5, 1598068), (10, 799034), (17, 470020), (20, 399517), (34, 235010), (68, 117505), (71, 112540), (85, 94004), (142, 56270), (170, 47002), (284, 28135), (331, 24140), (340, 23501), (355, 22508), (662, 12070), (710, 11254), (1207, 6620), (1324, 6035), (1420, 5627), (1655, 4828), (2414, 3310)]