20177055760

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1267403}}^1$

素因数の和:1267615

約数の個数: 40

約数和(自身を含む): 47147428800

約数和(自身を除く): 26970373040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 7960, 15920, 1267403, 2534806, 5069612, 6337015, 10139224, 12674030, 20278448, 25348060, 50696120, 101392240, 252213197, 504426394, 1008852788, 1261065985, 2017705576, 2522131970, 4035411152, 5044263940, 10088527880, 20177055760]

約数ペア:

[(1, 20177055760), (2, 10088527880), (4, 5044263940), (5, 4035411152), (8, 2522131970), (10, 2017705576), (16, 1261065985), (20, 1008852788), (40, 504426394), (80, 252213197), (199, 101392240), (398, 50696120), (796, 25348060), (995, 20278448), (1592, 12674030), (1990, 10139224), (3184, 6337015), (3980, 5069612), (7960, 2534806), (15920, 1267403)]