18389880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2221}}^1$

素因数の和:2261

約数の個数: 96

約数和(自身を含む): 62393760

約数和(自身を除く): 44003880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 552, 690, 828, 920, 1035, 1380, 1656, 2070, 2221, 2760, 4140, 4442, 6663, 8280, 8884, 11105, 13326, 17768, 19989, 22210, 26652, 33315, 39978, 44420, 51083, 53304, 66630, 79956, 88840, 99945, 102166, 133260, 153249, 159912, 199890, 204332, 255415, 266520, 306498, 399780, 408664, 459747, 510830, 612996, 766245, 799560, 919494, 1021660, 1225992, 1532490, 1838988, 2043320, 2298735, 3064980, 3677976, 4597470, 6129960, 9194940, 18389880]

約数ペア:

[(1, 18389880), (2, 9194940), (3, 6129960), (4, 4597470), (5, 3677976), (6, 3064980), (8, 2298735), (9, 2043320), (10, 1838988), (12, 1532490), (15, 1225992), (18, 1021660), (20, 919494), (23, 799560), (24, 766245), (30, 612996), (36, 510830), (40, 459747), (45, 408664), (46, 399780), (60, 306498), (69, 266520), (72, 255415), (90, 204332), (92, 199890), (115, 159912), (120, 153249), (138, 133260), (180, 102166), (184, 99945), (207, 88840), (230, 79956), (276, 66630), (345, 53304), (360, 51083), (414, 44420), (460, 39978), (552, 33315), (690, 26652), (828, 22210), (920, 19989), (1035, 17768), (1380, 13326), (1656, 11105), (2070, 8884), (2221, 8280), (2760, 6663), (4140, 4442)]