1398475

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{331}}^1$

素因数の和:367

約数の個数: 18

約数和(自身を含む): 1883436

約数和(自身を除く): 484961

約数列:

[1, 5, 13, 25, 65, 169, 325, 331, 845, 1655, 4225, 4303, 8275, 21515, 55939, 107575, 279695, 1398475]

約数ペア:

[(1, 1398475), (5, 279695), (13, 107575), (25, 55939), (65, 21515), (169, 8275), (325, 4303), (331, 4225), (845, 1655)]