128031920

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{14957}}^1$

素因数の和:15077

約数の個数: 40

約数和(自身を含む): 300476304

約数和(自身を除く): 172444384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 4280, 8560, 14957, 29914, 59828, 74785, 119656, 149570, 239312, 299140, 598280, 1196560, 1600399, 3200798, 6401596, 8001995, 12803192, 16003990, 25606384, 32007980, 64015960, 128031920]

約数ペア:

[(1, 128031920), (2, 64015960), (4, 32007980), (5, 25606384), (8, 16003990), (10, 12803192), (16, 8001995), (20, 6401596), (40, 3200798), (80, 1600399), (107, 1196560), (214, 598280), (428, 299140), (535, 239312), (856, 149570), (1070, 119656), (1712, 74785), (2140, 59828), (4280, 29914), (8560, 14957)]