18166840

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{5749}}^1$

素因数の和:5839

約数の個数: 32

約数和(自身を含む): 41400000

約数和(自身を除く): 23233160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 5749, 11498, 22996, 28745, 45992, 57490, 114980, 229960, 454171, 908342, 1816684, 2270855, 3633368, 4541710, 9083420, 18166840]

約数ペア:

[(1, 18166840), (2, 9083420), (4, 4541710), (5, 3633368), (8, 2270855), (10, 1816684), (20, 908342), (40, 454171), (79, 229960), (158, 114980), (316, 57490), (395, 45992), (632, 28745), (790, 22996), (1580, 11498), (3160, 5749)]