397045360

素因数分解:

$2^4\times 5^1\times {\mathrm{4963067}}^1$

素因数の和:4963080

約数の個数: 20

約数和(自身を含む): 923130648

約数和(自身を除く): 526085288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4963067, 9926134, 19852268, 24815335, 39704536, 49630670, 79409072, 99261340, 198522680, 397045360]

約数ペア:

[(1, 397045360), (2, 198522680), (4, 99261340), (5, 79409072), (8, 49630670), (10, 39704536), (16, 24815335), (20, 19852268), (40, 9926134), (80, 4963067)]