679660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1999}}^1$

素因数の和:2025

約数の個数: 24

約数和(自身を含む): 1512000

約数和(自身を除く): 832340

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1999, 3998, 7996, 9995, 19990, 33983, 39980, 67966, 135932, 169915, 339830, 679660]

約数ペア:

[(1, 679660), (2, 339830), (4, 169915), (5, 135932), (10, 67966), (17, 39980), (20, 33983), (34, 19990), (68, 9995), (85, 7996), (170, 3998), (340, 1999)]