30879875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:672

約数の個数: 32

約数和(自身を含む): 42911232

約数和(自身を除く): 12031357

約数列:

[1, 5, 13, 25, 31, 65, 125, 155, 325, 403, 613, 775, 1625, 2015, 3065, 3875, 7969, 10075, 15325, 19003, 39845, 50375, 76625, 95015, 199225, 247039, 475075, 996125, 1235195, 2375375, 6175975, 30879875]

約数ペア:

[(1, 30879875), (5, 6175975), (13, 2375375), (25, 1235195), (31, 996125), (65, 475075), (125, 247039), (155, 199225), (325, 95015), (403, 76625), (613, 50375), (775, 39845), (1625, 19003), (2015, 15325), (3065, 10075), (3875, 7969)]