627640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:112

約数の個数: 64

約数和(自身を含む): 1632960

約数和(自身を除く): 1005320

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 71, 85, 104, 130, 136, 142, 170, 221, 260, 284, 340, 355, 442, 520, 568, 680, 710, 884, 923, 1105, 1207, 1420, 1768, 1846, 2210, 2414, 2840, 3692, 4420, 4615, 4828, 6035, 7384, 8840, 9230, 9656, 12070, 15691, 18460, 24140, 31382, 36920, 48280, 62764, 78455, 125528, 156910, 313820, 627640]

約数ペア:

[(1, 627640), (2, 313820), (4, 156910), (5, 125528), (8, 78455), (10, 62764), (13, 48280), (17, 36920), (20, 31382), (26, 24140), (34, 18460), (40, 15691), (52, 12070), (65, 9656), (68, 9230), (71, 8840), (85, 7384), (104, 6035), (130, 4828), (136, 4615), (142, 4420), (170, 3692), (221, 2840), (260, 2414), (284, 2210), (340, 1846), (355, 1768), (442, 1420), (520, 1207), (568, 1105), (680, 923), (710, 884)]