428180

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:359

約数の個数: 24

約数和(自身を含む): 913920

約数和(自身を除く): 485740

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 271, 316, 395, 542, 790, 1084, 1355, 1580, 2710, 5420, 21409, 42818, 85636, 107045, 214090, 428180]

約数ペア:

[(1, 428180), (2, 214090), (4, 107045), (5, 85636), (10, 42818), (20, 21409), (79, 5420), (158, 2710), (271, 1580), (316, 1355), (395, 1084), (542, 790)]