20857650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{12641}}^1$

素因数の和:12667

約数の個数: 48

約数和(自身を含む): 56433888

約数和(自身を除く): 35576238

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 30, 33, 50, 55, 66, 75, 110, 150, 165, 275, 330, 550, 825, 1650, 12641, 25282, 37923, 63205, 75846, 126410, 139051, 189615, 278102, 316025, 379230, 417153, 632050, 695255, 834306, 948075, 1390510, 1896150, 2085765, 3476275, 4171530, 6952550, 10428825, 20857650]

約数ペア:

[(1, 20857650), (2, 10428825), (3, 6952550), (5, 4171530), (6, 3476275), (10, 2085765), (11, 1896150), (15, 1390510), (22, 948075), (25, 834306), (30, 695255), (33, 632050), (50, 417153), (55, 379230), (66, 316025), (75, 278102), (110, 189615), (150, 139051), (165, 126410), (275, 75846), (330, 63205), (550, 37923), (825, 25282), (1650, 12641)]