129999025

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{1061}}^1$

素因数の和:1126

約数の個数: 36

約数和(自身を含む): 180741780

約数和(自身を除く): 50742755

約数列:

[1, 5, 13, 25, 29, 65, 145, 169, 325, 377, 725, 845, 1061, 1885, 4225, 4901, 5305, 9425, 13793, 24505, 26525, 30769, 68965, 122525, 153845, 179309, 344825, 399997, 769225, 896545, 1999985, 4482725, 5199961, 9999925, 25999805, 129999025]

約数ペア:

[(1, 129999025), (5, 25999805), (13, 9999925), (25, 5199961), (29, 4482725), (65, 1999985), (145, 896545), (169, 769225), (325, 399997), (377, 344825), (725, 179309), (845, 153845), (1061, 122525), (1885, 68965), (4225, 30769), (4901, 26525), (5305, 24505), (9425, 13793)]