13405925

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:222

約数の個数: 36

約数和(自身を含む): 19061280

約数和(自身を除く): 5655355

約数列:

[1, 5, 13, 19, 25, 65, 95, 167, 169, 247, 325, 475, 835, 845, 1235, 2171, 3173, 3211, 4175, 4225, 6175, 10855, 15865, 16055, 28223, 41249, 54275, 79325, 80275, 141115, 206245, 536237, 705575, 1031225, 2681185, 13405925]

約数ペア:

[(1, 13405925), (5, 2681185), (13, 1031225), (19, 705575), (25, 536237), (65, 206245), (95, 141115), (167, 80275), (169, 79325), (247, 54275), (325, 41249), (475, 28223), (835, 16055), (845, 15865), (1235, 10855), (2171, 6175), (3173, 4225), (3211, 4175)]