64400220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{357779}}^1$

素因数の和:357794

約数の個数: 36

約数和(自身を含む): 195347880

約数和(自身を除く): 130947660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 357779, 715558, 1073337, 1431116, 1788895, 2146674, 3220011, 3577790, 4293348, 5366685, 6440022, 7155580, 10733370, 12880044, 16100055, 21466740, 32200110, 64400220]

約数ペア:

[(1, 64400220), (2, 32200110), (3, 21466740), (4, 16100055), (5, 12880044), (6, 10733370), (9, 7155580), (10, 6440022), (12, 5366685), (15, 4293348), (18, 3577790), (20, 3220011), (30, 2146674), (36, 1788895), (45, 1431116), (60, 1073337), (90, 715558), (180, 357779)]