129423220

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{66713}}^1$

素因数の和:66819

約数の個数: 24

約数和(自身を含む): 274594824

約数和(自身を除く): 145171604

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 66713, 133426, 266852, 333565, 667130, 1334260, 6471161, 12942322, 25884644, 32355805, 64711610, 129423220]

約数ペア:

[(1, 129423220), (2, 64711610), (4, 32355805), (5, 25884644), (10, 12942322), (20, 6471161), (97, 1334260), (194, 667130), (388, 333565), (485, 266852), (970, 133426), (1940, 66713)]