30487940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{217771}}^1$

素因数の和:217787

約数の個数: 24

約数和(自身を含む): 73171392

約数和(自身を除く): 42683452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 217771, 435542, 871084, 1088855, 1524397, 2177710, 3048794, 4355420, 6097588, 7621985, 15243970, 30487940]

約数ペア:

[(1, 30487940), (2, 15243970), (4, 7621985), (5, 6097588), (7, 4355420), (10, 3048794), (14, 2177710), (20, 1524397), (28, 1088855), (35, 871084), (70, 435542), (140, 217771)]