63680

素因数分解:

$2^6\times 5^1\times {\mathrm{199}}^1$

素因数の和:216

約数の個数: 28

約数和(自身を含む): 152400

約数和(自身を除く): 88720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 199, 320, 398, 796, 995, 1592, 1990, 3184, 3980, 6368, 7960, 12736, 15920, 31840, 63680]

約数ペア:

[(1, 63680), (2, 31840), (4, 15920), (5, 12736), (8, 7960), (10, 6368), (16, 3980), (20, 3184), (32, 1990), (40, 1592), (64, 995), (80, 796), (160, 398), (199, 320)]