20175897640

素因数分解:

$2^3\times 5^1\times {\mathrm{22993}}^1\times {\mathrm{21937}}^1$

素因数の和:44941

約数の個数: 32

約数和(自身を含む): 45399813480

約数和(自身を除く): 25223915840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21937, 22993, 43874, 45986, 87748, 91972, 109685, 114965, 175496, 183944, 219370, 229930, 438740, 459860, 877480, 919720, 504397441, 1008794882, 2017589764, 2521987205, 4035179528, 5043974410, 10087948820, 20175897640]

約数ペア:

[(1, 20175897640), (2, 10087948820), (4, 5043974410), (5, 4035179528), (8, 2521987205), (10, 2017589764), (20, 1008794882), (40, 504397441), (21937, 919720), (22993, 877480), (43874, 459860), (45986, 438740), (87748, 229930), (91972, 219370), (109685, 183944), (114965, 175496)]