39981540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1279}}^1$

素因数の和:1812

約数の個数: 48

約数和(自身を含む): 112250880

約数和(自身を除く): 72269340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 521, 1042, 1279, 1563, 2084, 2558, 2605, 3126, 3837, 5116, 5210, 6252, 6395, 7674, 7815, 10420, 12790, 15348, 15630, 19185, 25580, 31260, 38370, 76740, 666359, 1332718, 1999077, 2665436, 3331795, 3998154, 6663590, 7996308, 9995385, 13327180, 19990770, 39981540]

約数ペア:

[(1, 39981540), (2, 19990770), (3, 13327180), (4, 9995385), (5, 7996308), (6, 6663590), (10, 3998154), (12, 3331795), (15, 2665436), (20, 1999077), (30, 1332718), (60, 666359), (521, 76740), (1042, 38370), (1279, 31260), (1563, 25580), (2084, 19185), (2558, 15630), (2605, 15348), (3126, 12790), (3837, 10420), (5116, 7815), (5210, 7674), (6252, 6395)]