20758490

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1523}}^1$

素因数の和:1606

約数の個数: 32

約数和(自身を含む): 39502080

約数和(自身を除く): 18743590

約数列:

[1, 2, 5, 10, 29, 47, 58, 94, 145, 235, 290, 470, 1363, 1523, 2726, 3046, 6815, 7615, 13630, 15230, 44167, 71581, 88334, 143162, 220835, 357905, 441670, 715810, 2075849, 4151698, 10379245, 20758490]

約数ペア:

[(1, 20758490), (2, 10379245), (5, 4151698), (10, 2075849), (29, 715810), (47, 441670), (58, 357905), (94, 220835), (145, 143162), (235, 88334), (290, 71581), (470, 44167), (1363, 15230), (1523, 13630), (2726, 7615), (3046, 6815)]