19088080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:332

約数の個数: 80

約数和(自身を含む): 49104000

約数和(自身を除く): 30015920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 109, 110, 176, 199, 218, 220, 398, 436, 440, 545, 796, 872, 880, 995, 1090, 1199, 1592, 1744, 1990, 2180, 2189, 2398, 3184, 3980, 4360, 4378, 4796, 5995, 7960, 8720, 8756, 9592, 10945, 11990, 15920, 17512, 19184, 21691, 21890, 23980, 35024, 43382, 43780, 47960, 86764, 87560, 95920, 108455, 173528, 175120, 216910, 238601, 347056, 433820, 477202, 867640, 954404, 1193005, 1735280, 1908808, 2386010, 3817616, 4772020, 9544040, 19088080]

約数ペア:

[(1, 19088080), (2, 9544040), (4, 4772020), (5, 3817616), (8, 2386010), (10, 1908808), (11, 1735280), (16, 1193005), (20, 954404), (22, 867640), (40, 477202), (44, 433820), (55, 347056), (80, 238601), (88, 216910), (109, 175120), (110, 173528), (176, 108455), (199, 95920), (218, 87560), (220, 86764), (398, 47960), (436, 43780), (440, 43382), (545, 35024), (796, 23980), (872, 21890), (880, 21691), (995, 19184), (1090, 17512), (1199, 15920), (1592, 11990), (1744, 10945), (1990, 9592), (2180, 8756), (2189, 8720), (2398, 7960), (3184, 5995), (3980, 4796), (4360, 4378)]