20675240

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3469}}^1$

素因数の和:3629

約数の個数: 32

約数和(自身を含む): 46845000

約数和(自身を除く): 26169760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 3469, 5960, 6938, 13876, 17345, 27752, 34690, 69380, 138760, 516881, 1033762, 2067524, 2584405, 4135048, 5168810, 10337620, 20675240]

約数ペア:

[(1, 20675240), (2, 10337620), (4, 5168810), (5, 4135048), (8, 2584405), (10, 2067524), (20, 1033762), (40, 516881), (149, 138760), (298, 69380), (596, 34690), (745, 27752), (1192, 17345), (1490, 13876), (2980, 6938), (3469, 5960)]