18941140

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{167}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 41150592

約数和(自身を除く): 22209452

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 107, 167, 212, 214, 265, 334, 428, 530, 535, 668, 835, 1060, 1070, 1670, 2140, 3340, 5671, 8851, 11342, 17702, 17869, 22684, 28355, 35404, 35738, 44255, 56710, 71476, 88510, 89345, 113420, 177020, 178690, 357380, 947057, 1894114, 3788228, 4735285, 9470570, 18941140]

約数ペア:

[(1, 18941140), (2, 9470570), (4, 4735285), (5, 3788228), (10, 1894114), (20, 947057), (53, 357380), (106, 178690), (107, 177020), (167, 113420), (212, 89345), (214, 88510), (265, 71476), (334, 56710), (428, 44255), (530, 35738), (535, 35404), (668, 28355), (835, 22684), (1060, 17869), (1070, 17702), (1670, 11342), (2140, 8851), (3340, 5671)]