1904275

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{211}}^1$

素因数の和:259

約数の個数: 18

約数和(自身を含む): 2503932

約数和(自身を除く): 599657

約数列:

[1, 5, 19, 25, 95, 211, 361, 475, 1055, 1805, 4009, 5275, 9025, 20045, 76171, 100225, 380855, 1904275]

約数ペア:

[(1, 1904275), (5, 380855), (19, 100225), (25, 76171), (95, 20045), (211, 9025), (361, 5275), (475, 4009), (1055, 1805)]