39639280

素因数分解:

$2^4\times 5^1\times {\mathrm{495491}}^1$

素因数の和:495504

約数の個数: 20

約数和(自身を含む): 92161512

約数和(自身を除く): 52522232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 495491, 990982, 1981964, 2477455, 3963928, 4954910, 7927856, 9909820, 19819640, 39639280]

約数ペア:

[(1, 39639280), (2, 19819640), (4, 9909820), (5, 7927856), (8, 4954910), (10, 3963928), (16, 2477455), (20, 1981964), (40, 990982), (80, 495491)]