12998680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 31104000

約数和(自身を除く): 18105320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 71, 92, 115, 142, 184, 199, 230, 284, 355, 398, 460, 568, 710, 796, 920, 995, 1420, 1592, 1633, 1990, 2840, 3266, 3980, 4577, 6532, 7960, 8165, 9154, 13064, 14129, 16330, 18308, 22885, 28258, 32660, 36616, 45770, 56516, 65320, 70645, 91540, 113032, 141290, 183080, 282580, 324967, 565160, 649934, 1299868, 1624835, 2599736, 3249670, 6499340, 12998680]

約数ペア:

[(1, 12998680), (2, 6499340), (4, 3249670), (5, 2599736), (8, 1624835), (10, 1299868), (20, 649934), (23, 565160), (40, 324967), (46, 282580), (71, 183080), (92, 141290), (115, 113032), (142, 91540), (184, 70645), (199, 65320), (230, 56516), (284, 45770), (355, 36616), (398, 32660), (460, 28258), (568, 22885), (710, 18308), (796, 16330), (920, 14129), (995, 13064), (1420, 9154), (1592, 8165), (1633, 7960), (1990, 6532), (2840, 4577), (3266, 3980)]