20461380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{859}}^1$

素因数の和:1268

約数の個数: 48

約数和(自身を含む): 57503040

約数和(自身を除く): 37041660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 397, 794, 859, 1191, 1588, 1718, 1985, 2382, 2577, 3436, 3970, 4295, 4764, 5154, 5955, 7940, 8590, 10308, 11910, 12885, 17180, 23820, 25770, 51540, 341023, 682046, 1023069, 1364092, 1705115, 2046138, 3410230, 4092276, 5115345, 6820460, 10230690, 20461380]

約数ペア:

[(1, 20461380), (2, 10230690), (3, 6820460), (4, 5115345), (5, 4092276), (6, 3410230), (10, 2046138), (12, 1705115), (15, 1364092), (20, 1023069), (30, 682046), (60, 341023), (397, 51540), (794, 25770), (859, 23820), (1191, 17180), (1588, 12885), (1718, 11910), (1985, 10308), (2382, 8590), (2577, 7940), (3436, 5955), (3970, 5154), (4295, 4764)]