69639280

素因数分解:

$2^4\times 5^1\times {\mathrm{870491}}^1$

素因数の和:870504

約数の個数: 20

約数和(自身を含む): 161911512

約数和(自身を除く): 92272232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 870491, 1740982, 3481964, 4352455, 6963928, 8704910, 13927856, 17409820, 34819640, 69639280]

約数ペア:

[(1, 69639280), (2, 34819640), (4, 17409820), (5, 13927856), (8, 8704910), (10, 6963928), (16, 4352455), (20, 3481964), (40, 1740982), (80, 870491)]