15980680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:430

約数の個数: 64

約数和(自身を含む): 38724480

約数和(自身を除く): 22743800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 136, 142, 170, 284, 331, 340, 355, 568, 662, 680, 710, 1207, 1324, 1420, 1655, 2414, 2648, 2840, 3310, 4828, 5627, 6035, 6620, 9656, 11254, 12070, 13240, 22508, 23501, 24140, 28135, 45016, 47002, 48280, 56270, 94004, 112540, 117505, 188008, 225080, 235010, 399517, 470020, 799034, 940040, 1598068, 1997585, 3196136, 3995170, 7990340, 15980680]

約数ペア:

[(1, 15980680), (2, 7990340), (4, 3995170), (5, 3196136), (8, 1997585), (10, 1598068), (17, 940040), (20, 799034), (34, 470020), (40, 399517), (68, 235010), (71, 225080), (85, 188008), (136, 117505), (142, 112540), (170, 94004), (284, 56270), (331, 48280), (340, 47002), (355, 45016), (568, 28135), (662, 24140), (680, 23501), (710, 22508), (1207, 13240), (1324, 12070), (1420, 11254), (1655, 9656), (2414, 6620), (2648, 6035), (2840, 5627), (3310, 4828)]