20929010

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72169}}^1$

素因数の和:72205

約数の個数: 16

約数和(自身を含む): 38971800

約数和(自身を除く): 18042790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72169, 144338, 360845, 721690, 2092901, 4185802, 10464505, 20929010]

約数ペア:

[(1, 20929010), (2, 10464505), (5, 4185802), (10, 2092901), (29, 721690), (58, 360845), (145, 144338), (290, 72169)]