20676565

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1567}}^1$

素因数の和:1621

約数の個数: 32

約数和(自身を含む): 31610880

約数和(自身を除く): 10934315

約数列:

[1, 5, 7, 13, 29, 35, 65, 91, 145, 203, 377, 455, 1015, 1567, 1885, 2639, 7835, 10969, 13195, 20371, 45443, 54845, 101855, 142597, 227215, 318101, 590759, 712985, 1590505, 2953795, 4135313, 20676565]

約数ペア:

[(1, 20676565), (5, 4135313), (7, 2953795), (13, 1590505), (29, 712985), (35, 590759), (65, 318101), (91, 227215), (145, 142597), (203, 101855), (377, 54845), (455, 45443), (1015, 20371), (1567, 13195), (1885, 10969), (2639, 7835)]