252768140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{207187}}^1$

素因数の和:207257

約数の個数: 24

約数和(自身を含む): 539517552

約数和(自身を除く): 286749412

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 207187, 414374, 828748, 1035935, 2071870, 4143740, 12638407, 25276814, 50553628, 63192035, 126384070, 252768140]

約数ペア:

[(1, 252768140), (2, 126384070), (4, 63192035), (5, 50553628), (10, 25276814), (20, 12638407), (61, 4143740), (122, 2071870), (244, 1035935), (305, 828748), (610, 414374), (1220, 207187)]