19197620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1571}}^1$

素因数の和:1640

約数の個数: 48

約数和(自身を含む): 44368128

約数和(自身を除く): 25170508

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 1571, 2444, 3055, 3142, 6110, 6284, 7855, 12220, 15710, 20423, 31420, 40846, 73837, 81692, 102115, 147674, 204230, 295348, 369185, 408460, 738370, 959881, 1476740, 1919762, 3839524, 4799405, 9598810, 19197620]

約数ペア:

[(1, 19197620), (2, 9598810), (4, 4799405), (5, 3839524), (10, 1919762), (13, 1476740), (20, 959881), (26, 738370), (47, 408460), (52, 369185), (65, 295348), (94, 204230), (130, 147674), (188, 102115), (235, 81692), (260, 73837), (470, 40846), (611, 31420), (940, 20423), (1222, 15710), (1571, 12220), (2444, 7855), (3055, 6284), (3142, 6110)]