16726775

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:180

約数の個数: 36

約数和(自身を含む): 23281992

約数和(自身を除く): 6555217

約数列:

[1, 5, 13, 25, 37, 65, 107, 169, 185, 325, 481, 535, 845, 925, 1391, 2405, 2675, 3959, 4225, 6253, 6955, 12025, 18083, 19795, 31265, 34775, 51467, 90415, 98975, 156325, 257335, 452075, 669071, 1286675, 3345355, 16726775]

約数ペア:

[(1, 16726775), (5, 3345355), (13, 1286675), (25, 669071), (37, 452075), (65, 257335), (107, 156325), (169, 98975), (185, 90415), (325, 51467), (481, 34775), (535, 31265), (845, 19795), (925, 18083), (1391, 12025), (2405, 6955), (2675, 6253), (3959, 4225)]