20651640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{172097}}^1$

素因数の和:172111

約数の個数: 32

約数和(自身を含む): 61955280

約数和(自身を除く): 41303640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 172097, 344194, 516291, 688388, 860485, 1032582, 1376776, 1720970, 2065164, 2581455, 3441940, 4130328, 5162910, 6883880, 10325820, 20651640]

約数ペア:

[(1, 20651640), (2, 10325820), (3, 6883880), (4, 5162910), (5, 4130328), (6, 3441940), (8, 2581455), (10, 2065164), (12, 1720970), (15, 1376776), (20, 1032582), (24, 860485), (30, 688388), (40, 516291), (60, 344194), (120, 172097)]