8817820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{269}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 20412000

約数和(自身を除く): 11594180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 269, 298, 538, 596, 745, 1076, 1345, 1490, 1639, 2690, 2959, 2980, 3278, 5380, 5918, 6556, 8195, 11836, 14795, 16390, 29590, 32780, 40081, 59180, 80162, 160324, 200405, 400810, 440891, 801620, 881782, 1763564, 2204455, 4408910, 8817820]

約数ペア:

[(1, 8817820), (2, 4408910), (4, 2204455), (5, 1763564), (10, 881782), (11, 801620), (20, 440891), (22, 400810), (44, 200405), (55, 160324), (110, 80162), (149, 59180), (220, 40081), (269, 32780), (298, 29590), (538, 16390), (596, 14795), (745, 11836), (1076, 8195), (1345, 6556), (1490, 5918), (1639, 5380), (2690, 3278), (2959, 2980)]