71604180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1999}}^1$

素因数の和:2213

約数の個数: 72

約数和(自身を含む): 218400000

約数和(自身を除く): 146795820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 199, 398, 597, 796, 995, 1194, 1791, 1990, 1999, 2388, 2985, 3582, 3980, 3998, 5970, 5997, 7164, 7996, 8955, 9995, 11940, 11994, 17910, 17991, 19990, 23988, 29985, 35820, 35982, 39980, 59970, 71964, 89955, 119940, 179910, 359820, 397801, 795602, 1193403, 1591204, 1989005, 2386806, 3580209, 3978010, 4773612, 5967015, 7160418, 7956020, 11934030, 14320836, 17901045, 23868060, 35802090, 71604180]

約数ペア:

[(1, 71604180), (2, 35802090), (3, 23868060), (4, 17901045), (5, 14320836), (6, 11934030), (9, 7956020), (10, 7160418), (12, 5967015), (15, 4773612), (18, 3978010), (20, 3580209), (30, 2386806), (36, 1989005), (45, 1591204), (60, 1193403), (90, 795602), (180, 397801), (199, 359820), (398, 179910), (597, 119940), (796, 89955), (995, 71964), (1194, 59970), (1791, 39980), (1990, 35982), (1999, 35820), (2388, 29985), (2985, 23988), (3582, 19990), (3980, 17991), (3998, 17910), (5970, 11994), (5997, 11940), (7164, 9995), (7996, 8955)]