20040016

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{12401}}^1$

素因数の和:12510

約数の個数: 20

約数和(自身を含む): 39215124

約数和(自身を除く): 19175108

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 12401, 24802, 49604, 99208, 198416, 1252501, 2505002, 5010004, 10020008, 20040016]

約数ペア:

[(1, 20040016), (2, 10020008), (4, 5010004), (8, 2505002), (16, 1252501), (101, 198416), (202, 99208), (404, 49604), (808, 24802), (1616, 12401)]