19561850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5081}}^1$

素因数の和:5111

約数の個数: 48

約数和(自身を含む): 45372096

約数和(自身を除く): 25810246

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925, 3850, 5081, 10162, 25405, 35567, 50810, 55891, 71134, 111782, 127025, 177835, 254050, 279455, 355670, 391237, 558910, 782474, 889175, 1397275, 1778350, 1956185, 2794550, 3912370, 9780925, 19561850]

約数ペア:

[(1, 19561850), (2, 9780925), (5, 3912370), (7, 2794550), (10, 1956185), (11, 1778350), (14, 1397275), (22, 889175), (25, 782474), (35, 558910), (50, 391237), (55, 355670), (70, 279455), (77, 254050), (110, 177835), (154, 127025), (175, 111782), (275, 71134), (350, 55891), (385, 50810), (550, 35567), (770, 25405), (1925, 10162), (3850, 5081)]