1291223810

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1184609}}^1$

素因数の和:1184725

約数の個数: 16

約数和(自身を含む): 2345527800

約数和(自身を除く): 1054303990

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 1184609, 2369218, 5923045, 11846090, 129122381, 258244762, 645611905, 1291223810]

約数ペア:

[(1, 1291223810), (2, 645611905), (5, 258244762), (10, 129122381), (109, 11846090), (218, 5923045), (545, 2369218), (1090, 1184609)]