81374560

素因数分解:

$2^5\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6967}}^1$

素因数の和:7055

約数の個数: 48

約数和(自身を含む): 194908896

約数和(自身を除く): 113534336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 73, 80, 146, 160, 292, 365, 584, 730, 1168, 1460, 2336, 2920, 5840, 6967, 11680, 13934, 27868, 34835, 55736, 69670, 111472, 139340, 222944, 278680, 508591, 557360, 1017182, 1114720, 2034364, 2542955, 4068728, 5085910, 8137456, 10171820, 16274912, 20343640, 40687280, 81374560]

約数ペア:

[(1, 81374560), (2, 40687280), (4, 20343640), (5, 16274912), (8, 10171820), (10, 8137456), (16, 5085910), (20, 4068728), (32, 2542955), (40, 2034364), (73, 1114720), (80, 1017182), (146, 557360), (160, 508591), (292, 278680), (365, 222944), (584, 139340), (730, 111472), (1168, 69670), (1460, 55736), (2336, 34835), (2920, 27868), (5840, 13934), (6967, 11680)]