1255280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:114

約数の個数: 80

約数和(自身を含む): 3374784

約数和(自身を除く): 2119504

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 71, 80, 85, 104, 130, 136, 142, 170, 208, 221, 260, 272, 284, 340, 355, 442, 520, 568, 680, 710, 884, 923, 1040, 1105, 1136, 1207, 1360, 1420, 1768, 1846, 2210, 2414, 2840, 3536, 3692, 4420, 4615, 4828, 5680, 6035, 7384, 8840, 9230, 9656, 12070, 14768, 15691, 17680, 18460, 19312, 24140, 31382, 36920, 48280, 62764, 73840, 78455, 96560, 125528, 156910, 251056, 313820, 627640, 1255280]

約数ペア:

[(1, 1255280), (2, 627640), (4, 313820), (5, 251056), (8, 156910), (10, 125528), (13, 96560), (16, 78455), (17, 73840), (20, 62764), (26, 48280), (34, 36920), (40, 31382), (52, 24140), (65, 19312), (68, 18460), (71, 17680), (80, 15691), (85, 14768), (104, 12070), (130, 9656), (136, 9230), (142, 8840), (170, 7384), (208, 6035), (221, 5680), (260, 4828), (272, 4615), (284, 4420), (340, 3692), (355, 3536), (442, 2840), (520, 2414), (568, 2210), (680, 1846), (710, 1768), (884, 1420), (923, 1360), (1040, 1207), (1105, 1136)]