64916380

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{19913}}^1$

素因数の和:20085

約数の個数: 24

約数和(自身を含む): 137167632

約数和(自身を除く): 72251252

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 19913, 39826, 79652, 99565, 199130, 398260, 3245819, 6491638, 12983276, 16229095, 32458190, 64916380]

約数ペア:

[(1, 64916380), (2, 32458190), (4, 16229095), (5, 12983276), (10, 6491638), (20, 3245819), (163, 398260), (326, 199130), (652, 99565), (815, 79652), (1630, 39826), (3260, 19913)]