20466512

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1129}}^1$

素因数の和:1251

約数の個数: 40

約数和(自身を含む): 43717440

約数和(自身を除く): 23250928

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 103, 176, 206, 412, 824, 1129, 1133, 1648, 2258, 2266, 4516, 4532, 9032, 9064, 12419, 18064, 18128, 24838, 49676, 99352, 116287, 198704, 232574, 465148, 930296, 1279157, 1860592, 2558314, 5116628, 10233256, 20466512]

約数ペア:

[(1, 20466512), (2, 10233256), (4, 5116628), (8, 2558314), (11, 1860592), (16, 1279157), (22, 930296), (44, 465148), (88, 232574), (103, 198704), (176, 116287), (206, 99352), (412, 49676), (824, 24838), (1129, 18128), (1133, 18064), (1648, 12419), (2258, 9064), (2266, 9032), (4516, 4532)]