259968475

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{1663}}^1$

素因数の和:1736

約数の個数: 36

約数和(自身を含む): 358715136

約数和(自身を除く): 98746661

約数列:

[1, 5, 13, 25, 37, 65, 169, 185, 325, 481, 845, 925, 1663, 2405, 4225, 6253, 8315, 12025, 21619, 31265, 41575, 61531, 108095, 156325, 281047, 307655, 540475, 799903, 1405235, 1538275, 3999515, 7026175, 10398739, 19997575, 51993695, 259968475]

約数ペア:

[(1, 259968475), (5, 51993695), (13, 19997575), (25, 10398739), (37, 7026175), (65, 3999515), (169, 1538275), (185, 1405235), (325, 799903), (481, 540475), (845, 307655), (925, 281047), (1663, 156325), (2405, 108095), (4225, 61531), (6253, 41575), (8315, 31265), (12025, 21619)]