28290805

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 10589195

約数列:

[1, 5, 17, 23, 29, 85, 115, 145, 391, 493, 499, 667, 1955, 2465, 2495, 3335, 8483, 11339, 11477, 14471, 42415, 56695, 57385, 72355, 195109, 246007, 332833, 975545, 1230035, 1664165, 5658161, 28290805]

約数ペア:

[(1, 28290805), (5, 5658161), (17, 1664165), (23, 1230035), (29, 975545), (85, 332833), (115, 246007), (145, 195109), (391, 72355), (493, 57385), (499, 56695), (667, 42415), (1955, 14471), (2465, 11477), (2495, 11339), (3335, 8483)]