122400920

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{15377}}^1$

素因数の和:15587

約数の個数: 32

約数和(自身を含む): 276804000

約数和(自身を除く): 154403080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 15377, 30754, 61508, 76885, 123016, 153770, 307540, 615080, 3060023, 6120046, 12240092, 15300115, 24480184, 30600230, 61200460, 122400920]

約数ペア:

[(1, 122400920), (2, 61200460), (4, 30600230), (5, 24480184), (8, 15300115), (10, 12240092), (20, 6120046), (40, 3060023), (199, 615080), (398, 307540), (796, 153770), (995, 123016), (1592, 76885), (1990, 61508), (3980, 30754), (7960, 15377)]