31191260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{461}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 69854400

約数和(自身を除く): 38663140

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 199, 340, 398, 461, 796, 922, 995, 1844, 1990, 2305, 3383, 3980, 4610, 6766, 7837, 9220, 13532, 15674, 16915, 31348, 33830, 39185, 67660, 78370, 91739, 156740, 183478, 366956, 458695, 917390, 1559563, 1834780, 3119126, 6238252, 7797815, 15595630, 31191260]

約数ペア:

[(1, 31191260), (2, 15595630), (4, 7797815), (5, 6238252), (10, 3119126), (17, 1834780), (20, 1559563), (34, 917390), (68, 458695), (85, 366956), (170, 183478), (199, 156740), (340, 91739), (398, 78370), (461, 67660), (796, 39185), (922, 33830), (995, 31348), (1844, 16915), (1990, 15674), (2305, 13532), (3383, 9220), (3980, 7837), (4610, 6766)]