20857550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2591}}^1$

素因数の和:2633

約数の個数: 48

約数和(自身を含む): 46282752

約数和(自身を除く): 25425202

約数列:

[1, 2, 5, 7, 10, 14, 23, 25, 35, 46, 50, 70, 115, 161, 175, 230, 322, 350, 575, 805, 1150, 1610, 2591, 4025, 5182, 8050, 12955, 18137, 25910, 36274, 59593, 64775, 90685, 119186, 129550, 181370, 297965, 417151, 453425, 595930, 834302, 906850, 1489825, 2085755, 2979650, 4171510, 10428775, 20857550]

約数ペア:

[(1, 20857550), (2, 10428775), (5, 4171510), (7, 2979650), (10, 2085755), (14, 1489825), (23, 906850), (25, 834302), (35, 595930), (46, 453425), (50, 417151), (70, 297965), (115, 181370), (161, 129550), (175, 119186), (230, 90685), (322, 64775), (350, 59593), (575, 36274), (805, 25910), (1150, 18137), (1610, 12955), (2591, 8050), (4025, 5182)]