20306900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{3329}}^1$

素因数の和:3404

約数の個数: 36

約数和(自身を含む): 44801820

約数和(自身を除く): 24494920

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 3050, 3329, 6100, 6658, 13316, 16645, 33290, 66580, 83225, 166450, 203069, 332900, 406138, 812276, 1015345, 2030690, 4061380, 5076725, 10153450, 20306900]

約数ペア:

[(1, 20306900), (2, 10153450), (4, 5076725), (5, 4061380), (10, 2030690), (20, 1015345), (25, 812276), (50, 406138), (61, 332900), (100, 203069), (122, 166450), (244, 83225), (305, 66580), (610, 33290), (1220, 16645), (1525, 13316), (3050, 6658), (3329, 6100)]