128535725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{1811}}^1$

素因数の和:2005

約数の個数: 24

約数和(自身を含む): 169864128

約数和(自身を除く): 41328403

約数列:

[1, 5, 17, 25, 85, 167, 425, 835, 1811, 2839, 4175, 9055, 14195, 30787, 45275, 70975, 153935, 302437, 769675, 1512185, 5141429, 7560925, 25707145, 128535725]

約数ペア:

[(1, 128535725), (5, 25707145), (17, 7560925), (25, 5141429), (85, 1512185), (167, 769675), (425, 302437), (835, 153935), (1811, 70975), (2839, 45275), (4175, 30787), (9055, 14195)]