987207860

素因数分解:

$2^2\times 5^1\times {\mathrm{3499}}^1\times {\mathrm{14107}}^1$

素因数の和:17615

約数の個数: 24

約数和(自身を含む): 2073876000

約数和(自身を除く): 1086668140

約数列:

[1, 2, 4, 5, 10, 20, 3499, 6998, 13996, 14107, 17495, 28214, 34990, 56428, 69980, 70535, 141070, 282140, 49360393, 98720786, 197441572, 246801965, 493603930, 987207860]

約数ペア:

[(1, 987207860), (2, 493603930), (4, 246801965), (5, 197441572), (10, 98720786), (20, 49360393), (3499, 282140), (6998, 141070), (13996, 70535), (14107, 69980), (17495, 56428), (28214, 34990)]