1270297940

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{98779}}^1$

素因数の和:99431

約数の個数: 24

約数和(自身を含む): 2671801440

約数和(自身を除く): 1401503500

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2572, 3215, 6430, 12860, 98779, 197558, 395116, 493895, 987790, 1975580, 63514897, 127029794, 254059588, 317574485, 635148970, 1270297940]

約数ペア:

[(1, 1270297940), (2, 635148970), (4, 317574485), (5, 254059588), (10, 127029794), (20, 63514897), (643, 1975580), (1286, 987790), (2572, 493895), (3215, 395116), (6430, 197558), (12860, 98779)]