68907560

素因数分解:

$2^3\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{1579}}^1$

素因数の和:2681

約数の個数: 32

約数和(自身を含む): 155282400

約数和(自身を除く): 86374840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1091, 1579, 2182, 3158, 4364, 5455, 6316, 7895, 8728, 10910, 12632, 15790, 21820, 31580, 43640, 63160, 1722689, 3445378, 6890756, 8613445, 13781512, 17226890, 34453780, 68907560]

約数ペア:

[(1, 68907560), (2, 34453780), (4, 17226890), (5, 13781512), (8, 8613445), (10, 6890756), (20, 3445378), (40, 1722689), (1091, 63160), (1579, 43640), (2182, 31580), (3158, 21820), (4364, 15790), (5455, 12632), (6316, 10910), (7895, 8728)]