20043440

素因数分解:

$2^4\times 5^1\times {\mathrm{250543}}^1$

素因数の和:250556

約数の個数: 20

約数和(自身を含む): 46601184

約数和(自身を除く): 26557744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 250543, 501086, 1002172, 1252715, 2004344, 2505430, 4008688, 5010860, 10021720, 20043440]

約数ペア:

[(1, 20043440), (2, 10021720), (4, 5010860), (5, 4008688), (8, 2505430), (10, 2004344), (16, 1252715), (20, 1002172), (40, 501086), (80, 250543)]