20580245

素因数分解:

$5^1\times 7^2\times {\mathrm{167}}^1\times {\mathrm{503}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 28957824

約数和(自身を除く): 8377579

約数列:

[1, 5, 7, 35, 49, 167, 245, 503, 835, 1169, 2515, 3521, 5845, 8183, 17605, 24647, 40915, 84001, 123235, 420005, 588007, 2940035, 4116049, 20580245]

約数ペア:

[(1, 20580245), (5, 4116049), (7, 2940035), (35, 588007), (49, 420005), (167, 123235), (245, 84001), (503, 40915), (835, 24647), (1169, 17605), (2515, 8183), (3521, 5845)]