20352005

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1\times {\mathrm{211}}^1$

素因数の和:508

約数の個数: 16

約数和(自身を含む): 24910848

約数和(自身を除く): 4558843

約数列:

[1, 5, 101, 191, 211, 505, 955, 1055, 19291, 21311, 40301, 96455, 106555, 201505, 4070401, 20352005]

約数ペア:

[(1, 20352005), (5, 4070401), (101, 201505), (191, 106555), (211, 96455), (505, 40301), (955, 21311), (1055, 19291)]