388432840

素因数分解:

$2^3\times 5^1\times {\mathrm{9710821}}^1$

素因数の和:9710832

約数の個数: 16

約数和(自身を含む): 873973980

約数和(自身を除く): 485541140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9710821, 19421642, 38843284, 48554105, 77686568, 97108210, 194216420, 388432840]

約数ペア:

[(1, 388432840), (2, 194216420), (4, 97108210), (5, 77686568), (8, 48554105), (10, 38843284), (20, 19421642), (40, 9710821)]