1279232560

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{225217}}^1$

素因数の和:225301

約数の個数: 40

約数和(自身を含む): 3016119456

約数和(自身を除く): 1736886896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 225217, 450434, 900868, 1126085, 1801736, 2252170, 3603472, 4504340, 9008680, 15990407, 18017360, 31980814, 63961628, 79952035, 127923256, 159904070, 255846512, 319808140, 639616280, 1279232560]

約数ペア:

[(1, 1279232560), (2, 639616280), (4, 319808140), (5, 255846512), (8, 159904070), (10, 127923256), (16, 79952035), (20, 63961628), (40, 31980814), (71, 18017360), (80, 15990407), (142, 9008680), (284, 4504340), (355, 3603472), (568, 2252170), (710, 1801736), (1136, 1126085), (1420, 900868), (2840, 450434), (5680, 225217)]