77817980

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{30637}}^1$

素因数の和:30773

約数の個数: 24

約数和(自身を含む): 164709888

約数和(自身を除く): 86891908

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 30637, 61274, 122548, 153185, 306370, 612740, 3890899, 7781798, 15563596, 19454495, 38908990, 77817980]

約数ペア:

[(1, 77817980), (2, 38908990), (4, 19454495), (5, 15563596), (10, 7781798), (20, 3890899), (127, 612740), (254, 306370), (508, 153185), (635, 122548), (1270, 61274), (2540, 30637)]