20796625870

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71712503}}^1$

素因数の和:71712539

約数の個数: 16

約数和(自身を含む): 38724752160

約数和(自身を除く): 17928126290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 71712503, 143425006, 358562515, 717125030, 2079662587, 4159325174, 10398312935, 20796625870]

約数ペア:

[(1, 20796625870), (2, 10398312935), (5, 4159325174), (10, 2079662587), (29, 717125030), (58, 358562515), (145, 143425006), (290, 71712503)]