290225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:89

約数の個数: 24

約数和(自身を含む): 416640

約数和(自身を除く): 126415

約数列:

[1, 5, 13, 19, 25, 47, 65, 95, 235, 247, 325, 475, 611, 893, 1175, 1235, 3055, 4465, 6175, 11609, 15275, 22325, 58045, 290225]

約数ペア:

[(1, 290225), (5, 58045), (13, 22325), (19, 15275), (25, 11609), (47, 6175), (65, 4465), (95, 3055), (235, 1235), (247, 1175), (325, 893), (475, 611)]