204821020

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{40801}}^1$

素因数の和:41061

約数の個数: 24

約数和(自身を含む): 431848368

約数和(自身を除く): 227027348

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 40801, 81602, 163204, 204005, 408010, 816020, 10241051, 20482102, 40964204, 51205255, 102410510, 204821020]

約数ペア:

[(1, 204821020), (2, 102410510), (4, 51205255), (5, 40964204), (10, 20482102), (20, 10241051), (251, 816020), (502, 408010), (1004, 204005), (1255, 163204), (2510, 81602), (5020, 40801)]