20505720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{170881}}^1$

素因数の和:170895

約数の個数: 32

約数和(自身を含む): 61517520

約数和(自身を除く): 41011800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 170881, 341762, 512643, 683524, 854405, 1025286, 1367048, 1708810, 2050572, 2563215, 3417620, 4101144, 5126430, 6835240, 10252860, 20505720]

約数ペア:

[(1, 20505720), (2, 10252860), (3, 6835240), (4, 5126430), (5, 4101144), (6, 3417620), (8, 2563215), (10, 2050572), (12, 1708810), (15, 1367048), (20, 1025286), (24, 854405), (30, 683524), (40, 512643), (60, 341762), (120, 170881)]