20477584

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{5099}}^1$

素因数の和:5358

約数の個数: 20

約数和(自身を含む): 39841200

約数和(自身を除く): 19363616

約数列:

[1, 2, 4, 8, 16, 251, 502, 1004, 2008, 4016, 5099, 10198, 20396, 40792, 81584, 1279849, 2559698, 5119396, 10238792, 20477584]

約数ペア:

[(1, 20477584), (2, 10238792), (4, 5119396), (8, 2559698), (16, 1279849), (251, 81584), (502, 40792), (1004, 20396), (2008, 10198), (4016, 5099)]