20550140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79039}}^1$

素因数の和:79061

約数の個数: 24

約数和(自身を含む): 46475520

約数和(自身を除く): 25925380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 79039, 158078, 316156, 395195, 790390, 1027507, 1580780, 2055014, 4110028, 5137535, 10275070, 20550140]

約数ペア:

[(1, 20550140), (2, 10275070), (4, 5137535), (5, 4110028), (10, 2055014), (13, 1580780), (20, 1027507), (26, 790390), (52, 395195), (65, 316156), (130, 158078), (260, 79039)]