20306540

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{6229}}^1$

素因数の和:6401

約数の個数: 24

約数和(自身を含む): 42912240

約数和(自身を除く): 22605700

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 6229, 12458, 24916, 31145, 62290, 124580, 1015327, 2030654, 4061308, 5076635, 10153270, 20306540]

約数ペア:

[(1, 20306540), (2, 10153270), (4, 5076635), (5, 4061308), (10, 2030654), (20, 1015327), (163, 124580), (326, 62290), (652, 31145), (815, 24916), (1630, 12458), (3260, 6229)]