129621160

素因数分解:

$2^3\times 5^1\times {\mathrm{3240529}}^1$

素因数の和:3240540

約数の個数: 16

約数和(自身を含む): 291647700

約数和(自身を除く): 162026540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3240529, 6481058, 12962116, 16202645, 25924232, 32405290, 64810580, 129621160]

約数ペア:

[(1, 129621160), (2, 64810580), (4, 32405290), (5, 25924232), (8, 16202645), (10, 12962116), (20, 6481058), (40, 3240529)]