2480620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4001}}^1$

素因数の和:4041

約数の個数: 24

約数和(自身を含む): 5378688

約数和(自身を除く): 2898068

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 4001, 8002, 16004, 20005, 40010, 80020, 124031, 248062, 496124, 620155, 1240310, 2480620]

約数ペア:

[(1, 2480620), (2, 1240310), (4, 620155), (5, 496124), (10, 248062), (20, 124031), (31, 80020), (62, 40010), (124, 20005), (155, 16004), (310, 8002), (620, 4001)]