20646260

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{35597}}^1$

素因数の和:35635

約数の個数: 24

約数和(自身を含む): 44853480

約数和(自身を除く): 24207220

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 35597, 71194, 142388, 177985, 355970, 711940, 1032313, 2064626, 4129252, 5161565, 10323130, 20646260]

約数ペア:

[(1, 20646260), (2, 10323130), (4, 5161565), (5, 4129252), (10, 2064626), (20, 1032313), (29, 711940), (58, 355970), (116, 177985), (145, 142388), (290, 71194), (580, 35597)]