56881640

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{5407}}^1$

素因数の和:5681

約数の個数: 32

約数和(自身を含む): 128494080

約数和(自身を除く): 71612440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 5407, 10520, 10814, 21628, 27035, 43256, 54070, 108140, 216280, 1422041, 2844082, 5688164, 7110205, 11376328, 14220410, 28440820, 56881640]

約数ペア:

[(1, 56881640), (2, 28440820), (4, 14220410), (5, 11376328), (8, 7110205), (10, 5688164), (20, 2844082), (40, 1422041), (263, 216280), (526, 108140), (1052, 54070), (1315, 43256), (2104, 27035), (2630, 21628), (5260, 10814), (5407, 10520)]