55278140

素因数分解:

$2^2\times 5^1\times {\mathrm{1297}}^1\times {\mathrm{2131}}^1$

素因数の和:3437

約数の個数: 24

約数和(自身を含む): 116228112

約数和(自身を除く): 60949972

約数列:

[1, 2, 4, 5, 10, 20, 1297, 2131, 2594, 4262, 5188, 6485, 8524, 10655, 12970, 21310, 25940, 42620, 2763907, 5527814, 11055628, 13819535, 27639070, 55278140]

約数ペア:

[(1, 55278140), (2, 27639070), (4, 13819535), (5, 11055628), (10, 5527814), (20, 2763907), (1297, 42620), (2131, 25940), (2594, 21310), (4262, 12970), (5188, 10655), (6485, 8524)]