713971640

素因数分解:

$2^3\times 5^1\times {\mathrm{997}}^1\times {\mathrm{17903}}^1$

素因数の和:18911

約数の個数: 32

約数和(自身を含む): 1608137280

約数和(自身を除く): 894165640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 997, 1994, 3988, 4985, 7976, 9970, 17903, 19940, 35806, 39880, 71612, 89515, 143224, 179030, 358060, 716120, 17849291, 35698582, 71397164, 89246455, 142794328, 178492910, 356985820, 713971640]

約数ペア:

[(1, 713971640), (2, 356985820), (4, 178492910), (5, 142794328), (8, 89246455), (10, 71397164), (20, 35698582), (40, 17849291), (997, 716120), (1994, 358060), (3988, 179030), (4985, 143224), (7976, 89515), (9970, 71612), (17903, 39880), (19940, 35806)]