77778835180

素因数分解:

$2^2\times 5^1\times {\mathrm{970537}}^1\times {\mathrm{4007}}^1$

素因数の和:974553

約数の個数: 24

約数和(自身を含む): 163376484768

約数和(自身を除く): 85597649588

約数列:

[1, 2, 4, 5, 10, 20, 4007, 8014, 16028, 20035, 40070, 80140, 970537, 1941074, 3882148, 4852685, 9705370, 19410740, 3888941759, 7777883518, 15555767036, 19444708795, 38889417590, 77778835180]

約数ペア:

[(1, 77778835180), (2, 38889417590), (4, 19444708795), (5, 15555767036), (10, 7777883518), (20, 3888941759), (4007, 19410740), (8014, 9705370), (16028, 4852685), (20035, 3882148), (40070, 1941074), (80140, 970537)]