28092025

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:206

約数の個数: 36

約数和(自身を含む): 38689860

約数和(自身を除く): 10597835

約数列:

[1, 5, 13, 25, 61, 65, 109, 169, 305, 325, 545, 793, 845, 1417, 1525, 2725, 3965, 4225, 6649, 7085, 10309, 18421, 19825, 33245, 35425, 51545, 86437, 92105, 166225, 257725, 432185, 460525, 1123681, 2160925, 5618405, 28092025]

約数ペア:

[(1, 28092025), (5, 5618405), (13, 2160925), (25, 1123681), (61, 460525), (65, 432185), (109, 257725), (169, 166225), (305, 92105), (325, 86437), (545, 51545), (793, 35425), (845, 33245), (1417, 19825), (1525, 18421), (2725, 10309), (3965, 7085), (4225, 6649)]