77238680

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{6971}}^1$

素因数の和:7259

約数の個数: 32

約数和(自身を含む): 174439440

約数和(自身を除く): 97200760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 2216, 2770, 5540, 6971, 11080, 13942, 27884, 34855, 55768, 69710, 139420, 278840, 1930967, 3861934, 7723868, 9654835, 15447736, 19309670, 38619340, 77238680]

約数ペア:

[(1, 77238680), (2, 38619340), (4, 19309670), (5, 15447736), (8, 9654835), (10, 7723868), (20, 3861934), (40, 1930967), (277, 278840), (554, 139420), (1108, 69710), (1385, 55768), (2216, 34855), (2770, 27884), (5540, 13942), (6971, 11080)]