20457605

素因数分解:

$5^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{1279}}^1$

素因数の和:1748

約数の個数: 16

約数和(自身を含む): 28139520

約数和(自身を除く): 7681915

約数列:

[1, 5, 7, 35, 457, 1279, 2285, 3199, 6395, 8953, 15995, 44765, 584503, 2922515, 4091521, 20457605]

約数ペア:

[(1, 20457605), (5, 4091521), (7, 2922515), (35, 584503), (457, 44765), (1279, 15995), (2285, 8953), (3199, 6395)]