20145260

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{4013}}^1$

素因数の和:4273

約数の個数: 24

約数和(自身を含む): 42484176

約数和(自身を除く): 22338916

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 4013, 5020, 8026, 16052, 20065, 40130, 80260, 1007263, 2014526, 4029052, 5036315, 10072630, 20145260]

約数ペア:

[(1, 20145260), (2, 10072630), (4, 5036315), (5, 4029052), (10, 2014526), (20, 1007263), (251, 80260), (502, 40130), (1004, 20065), (1255, 16052), (2510, 8026), (4013, 5020)]