18277940

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{5821}}^1$

素因数の和:5987

約数の個数: 24

約数和(自身を含む): 38634792

約数和(自身を除く): 20356852

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 5821, 11642, 23284, 29105, 58210, 116420, 913897, 1827794, 3655588, 4569485, 9138970, 18277940]

約数ペア:

[(1, 18277940), (2, 9138970), (4, 4569485), (5, 3655588), (10, 1827794), (20, 913897), (157, 116420), (314, 58210), (628, 29105), (785, 23284), (1570, 11642), (3140, 5821)]