20663660

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1549}}^1$

素因数の和:1610

約数の個数: 48

約数和(自身を含む): 46872000

約数和(自身を除く): 26208340

約数列:

[1, 2, 4, 5, 10, 20, 23, 29, 46, 58, 92, 115, 116, 145, 230, 290, 460, 580, 667, 1334, 1549, 2668, 3098, 3335, 6196, 6670, 7745, 13340, 15490, 30980, 35627, 44921, 71254, 89842, 142508, 178135, 179684, 224605, 356270, 449210, 712540, 898420, 1033183, 2066366, 4132732, 5165915, 10331830, 20663660]

約数ペア:

[(1, 20663660), (2, 10331830), (4, 5165915), (5, 4132732), (10, 2066366), (20, 1033183), (23, 898420), (29, 712540), (46, 449210), (58, 356270), (92, 224605), (115, 179684), (116, 178135), (145, 142508), (230, 89842), (290, 71254), (460, 44921), (580, 35627), (667, 30980), (1334, 15490), (1549, 13340), (2668, 7745), (3098, 6670), (3335, 6196)]