86787880

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{10903}}^1$

素因数の和:11113

約数の個数: 32

約数和(自身を含む): 196272000

約数和(自身を除く): 109484120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 10903, 21806, 43612, 54515, 87224, 109030, 218060, 436120, 2169697, 4339394, 8678788, 10848485, 17357576, 21696970, 43393940, 86787880]

約数ペア:

[(1, 86787880), (2, 43393940), (4, 21696970), (5, 17357576), (8, 10848485), (10, 8678788), (20, 4339394), (40, 2169697), (199, 436120), (398, 218060), (796, 109030), (995, 87224), (1592, 54515), (1990, 43612), (3980, 21806), (7960, 10903)]