20506740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2609}}^1$

素因数の和:2752

約数の個数: 48

約数和(自身を含む): 57879360

約数和(自身を除く): 37372620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2609, 2620, 3930, 5218, 7827, 7860, 10436, 13045, 15654, 26090, 31308, 39135, 52180, 78270, 156540, 341779, 683558, 1025337, 1367116, 1708895, 2050674, 3417790, 4101348, 5126685, 6835580, 10253370, 20506740]

約数ペア:

[(1, 20506740), (2, 10253370), (3, 6835580), (4, 5126685), (5, 4101348), (6, 3417790), (10, 2050674), (12, 1708895), (15, 1367116), (20, 1025337), (30, 683558), (60, 341779), (131, 156540), (262, 78270), (393, 52180), (524, 39135), (655, 31308), (786, 26090), (1310, 15654), (1572, 13045), (1965, 10436), (2609, 7860), (2620, 7827), (3930, 5218)]