18236439920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{285301}}^1$

素因数の和:285378

約数の個数: 80

約数和(自身を含む): 45849172608

約数和(自身を除く): 27612732688

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, 3196, 3760, 3995, 6392, 7990, 12784, 15980, 31960, 63920, 285301, 570602, 1141204, 1426505, 2282408, 2853010, 4564816, 4850117, 5706020, 9700234, 11412040, 13409147, 19400468, 22824080, 24250585, 26818294, 38800936, 48501170, 53636588, 67045735, 77601872, 97002340, 107273176, 134091470, 194004680, 214546352, 227955499, 268182940, 388009360, 455910998, 536365880, 911821996, 1072731760, 1139777495, 1823643992, 2279554990, 3647287984, 4559109980, 9118219960, 18236439920]

約数ペア:

[(1, 18236439920), (2, 9118219960), (4, 4559109980), (5, 3647287984), (8, 2279554990), (10, 1823643992), (16, 1139777495), (17, 1072731760), (20, 911821996), (34, 536365880), (40, 455910998), (47, 388009360), (68, 268182940), (80, 227955499), (85, 214546352), (94, 194004680), (136, 134091470), (170, 107273176), (188, 97002340), (235, 77601872), (272, 67045735), (340, 53636588), (376, 48501170), (470, 38800936), (680, 26818294), (752, 24250585), (799, 22824080), (940, 19400468), (1360, 13409147), (1598, 11412040), (1880, 9700234), (3196, 5706020), (3760, 4850117), (3995, 4564816), (6392, 2853010), (7990, 2282408), (12784, 1426505), (15980, 1141204), (31960, 570602), (63920, 285301)]