129720848

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{63839}}^1$

素因数の和:63974

約数の個数: 20

約数和(自身を含む): 253317120

約数和(自身を除く): 123596272

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 63839, 127678, 255356, 510712, 1021424, 8107553, 16215106, 32430212, 64860424, 129720848]

約数ペア:

[(1, 129720848), (2, 64860424), (4, 32430212), (8, 16215106), (16, 8107553), (127, 1021424), (254, 510712), (508, 255356), (1016, 127678), (2032, 63839)]