1019090

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1009}}^1$

素因数の和:1117

約数の個数: 16

約数和(自身を含む): 1854360

約数和(自身を除く): 835270

約数列:

[1, 2, 5, 10, 101, 202, 505, 1009, 1010, 2018, 5045, 10090, 101909, 203818, 509545, 1019090]

約数ペア:

[(1, 1019090), (2, 509545), (5, 203818), (10, 101909), (101, 10090), (202, 5045), (505, 2018), (1009, 1010)]