38917940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{27407}}^1$

素因数の和:27487

約数の個数: 24

約数和(自身を含む): 82881792

約数和(自身を除く): 43963852

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 27407, 54814, 109628, 137035, 274070, 548140, 1945897, 3891794, 7783588, 9729485, 19458970, 38917940]

約数ペア:

[(1, 38917940), (2, 19458970), (4, 9729485), (5, 7783588), (10, 3891794), (20, 1945897), (71, 548140), (142, 274070), (284, 137035), (355, 109628), (710, 54814), (1420, 27407)]