394020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1$

素因数の和:225

約数の個数: 72

約数和(自身を含む): 1310400

約数和(自身を除く): 916380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 199, 220, 330, 396, 398, 495, 597, 660, 796, 990, 995, 1194, 1791, 1980, 1990, 2189, 2388, 2985, 3582, 3980, 4378, 5970, 6567, 7164, 8756, 8955, 10945, 11940, 13134, 17910, 19701, 21890, 26268, 32835, 35820, 39402, 43780, 65670, 78804, 98505, 131340, 197010, 394020]

約数ペア:

[(1, 394020), (2, 197010), (3, 131340), (4, 98505), (5, 78804), (6, 65670), (9, 43780), (10, 39402), (11, 35820), (12, 32835), (15, 26268), (18, 21890), (20, 19701), (22, 17910), (30, 13134), (33, 11940), (36, 10945), (44, 8955), (45, 8756), (55, 7164), (60, 6567), (66, 5970), (90, 4378), (99, 3980), (110, 3582), (132, 2985), (165, 2388), (180, 2189), (198, 1990), (199, 1980), (220, 1791), (330, 1194), (396, 995), (398, 990), (495, 796), (597, 660)]