138131120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2161}}^1$

素因数の和:2238

約数の個数: 80

約数和(自身を含む): 347442048

約数和(自身を除く): 209310928

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 47, 68, 80, 85, 94, 136, 170, 188, 235, 272, 340, 376, 470, 680, 752, 799, 940, 1360, 1598, 1880, 2161, 3196, 3760, 3995, 4322, 6392, 7990, 8644, 10805, 12784, 15980, 17288, 21610, 31960, 34576, 36737, 43220, 63920, 73474, 86440, 101567, 146948, 172880, 183685, 203134, 293896, 367370, 406268, 507835, 587792, 734740, 812536, 1015670, 1469480, 1625072, 1726639, 2031340, 2938960, 3453278, 4062680, 6906556, 8125360, 8633195, 13813112, 17266390, 27626224, 34532780, 69065560, 138131120]

約数ペア:

[(1, 138131120), (2, 69065560), (4, 34532780), (5, 27626224), (8, 17266390), (10, 13813112), (16, 8633195), (17, 8125360), (20, 6906556), (34, 4062680), (40, 3453278), (47, 2938960), (68, 2031340), (80, 1726639), (85, 1625072), (94, 1469480), (136, 1015670), (170, 812536), (188, 734740), (235, 587792), (272, 507835), (340, 406268), (376, 367370), (470, 293896), (680, 203134), (752, 183685), (799, 172880), (940, 146948), (1360, 101567), (1598, 86440), (1880, 73474), (2161, 63920), (3196, 43220), (3760, 36737), (3995, 34576), (4322, 31960), (6392, 21610), (7990, 17288), (8644, 15980), (10805, 12784)]