12955240

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1987}}^1$

素因数の和:2161

約数の個数: 32

約数和(自身を含む): 29342880

約数和(自身を除く): 16387640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 1987, 3260, 3974, 6520, 7948, 9935, 15896, 19870, 39740, 79480, 323881, 647762, 1295524, 1619405, 2591048, 3238810, 6477620, 12955240]

約数ペア:

[(1, 12955240), (2, 6477620), (4, 3238810), (5, 2591048), (8, 1619405), (10, 1295524), (20, 647762), (40, 323881), (163, 79480), (326, 39740), (652, 19870), (815, 15896), (1304, 9935), (1630, 7948), (1987, 6520), (3260, 3974)]