20908820

素因数分解:

$2^2\times 5^1\times {\mathrm{953}}^1\times {\mathrm{1097}}^1$

素因数の和:2059

約数の個数: 24

約数和(自身を含む): 43994664

約数和(自身を除く): 23085844

約数列:

[1, 2, 4, 5, 10, 20, 953, 1097, 1906, 2194, 3812, 4388, 4765, 5485, 9530, 10970, 19060, 21940, 1045441, 2090882, 4181764, 5227205, 10454410, 20908820]

約数ペア:

[(1, 20908820), (2, 10454410), (4, 5227205), (5, 4181764), (10, 2090882), (20, 1045441), (953, 21940), (1097, 19060), (1906, 10970), (2194, 9530), (3812, 5485), (4388, 4765)]