28720132

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{7487}}^1$

素因数の和:7635

約数の個数: 24

約数和(自身を含む): 57867264

約数和(自身を除く): 29147132

約数列:

[1, 2, 4, 7, 14, 28, 137, 274, 548, 959, 1918, 3836, 7487, 14974, 29948, 52409, 104818, 209636, 1025719, 2051438, 4102876, 7180033, 14360066, 28720132]

約数ペア:

[(1, 28720132), (2, 14360066), (4, 7180033), (7, 4102876), (14, 2051438), (28, 1025719), (137, 209636), (274, 104818), (548, 52409), (959, 29948), (1918, 14974), (3836, 7487)]