278316740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{9473}}^1$

素因数の和:9608

約数の個数: 48

約数和(自身を含む): 635061168

約数和(自身を除く): 356744428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 226, 260, 452, 565, 1130, 1469, 2260, 2938, 5876, 7345, 9473, 14690, 18946, 29380, 37892, 47365, 94730, 123149, 189460, 246298, 492596, 615745, 1070449, 1231490, 2140898, 2462980, 4281796, 5352245, 10704490, 13915837, 21408980, 27831674, 55663348, 69579185, 139158370, 278316740]

約数ペア:

[(1, 278316740), (2, 139158370), (4, 69579185), (5, 55663348), (10, 27831674), (13, 21408980), (20, 13915837), (26, 10704490), (52, 5352245), (65, 4281796), (113, 2462980), (130, 2140898), (226, 1231490), (260, 1070449), (452, 615745), (565, 492596), (1130, 246298), (1469, 189460), (2260, 123149), (2938, 94730), (5876, 47365), (7345, 37892), (9473, 29380), (14690, 18946)]