18475160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 45792000

約数和(自身を除く): 27316840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 199, 211, 220, 398, 422, 440, 796, 844, 995, 1055, 1592, 1688, 1990, 2110, 2189, 2321, 3980, 4220, 4378, 4642, 7960, 8440, 8756, 9284, 10945, 11605, 17512, 18568, 21890, 23210, 41989, 43780, 46420, 83978, 87560, 92840, 167956, 209945, 335912, 419890, 461879, 839780, 923758, 1679560, 1847516, 2309395, 3695032, 4618790, 9237580, 18475160]

約数ペア:

[(1, 18475160), (2, 9237580), (4, 4618790), (5, 3695032), (8, 2309395), (10, 1847516), (11, 1679560), (20, 923758), (22, 839780), (40, 461879), (44, 419890), (55, 335912), (88, 209945), (110, 167956), (199, 92840), (211, 87560), (220, 83978), (398, 46420), (422, 43780), (440, 41989), (796, 23210), (844, 21890), (995, 18568), (1055, 17512), (1592, 11605), (1688, 10945), (1990, 9284), (2110, 8756), (2189, 8440), (2321, 7960), (3980, 4642), (4220, 4378)]