66728920

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{7349}}^1$

素因数の和:7587

約数の個数: 32

約数和(自身を含む): 150822000

約数和(自身を除く): 84093080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2270, 4540, 7349, 9080, 14698, 29396, 36745, 58792, 73490, 146980, 293960, 1668223, 3336446, 6672892, 8341115, 13345784, 16682230, 33364460, 66728920]

約数ペア:

[(1, 66728920), (2, 33364460), (4, 16682230), (5, 13345784), (8, 8341115), (10, 6672892), (20, 3336446), (40, 1668223), (227, 293960), (454, 146980), (908, 73490), (1135, 58792), (1816, 36745), (2270, 29396), (4540, 14698), (7349, 9080)]