18489880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27191}}^1$

素因数の和:27219

約数の個数: 32

約数和(自身を含む): 44051040

約数和(自身を除く): 25561160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 27191, 54382, 108764, 135955, 217528, 271910, 462247, 543820, 924494, 1087640, 1848988, 2311235, 3697976, 4622470, 9244940, 18489880]

約数ペア:

[(1, 18489880), (2, 9244940), (4, 4622470), (5, 3697976), (8, 2311235), (10, 1848988), (17, 1087640), (20, 924494), (34, 543820), (40, 462247), (68, 271910), (85, 217528), (136, 135955), (170, 108764), (340, 54382), (680, 27191)]