209972560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5281}}^1$

素因数の和:5372

約数の個数: 80

約数和(自身を含む): 565892352

約数和(自身を除く): 355919792

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1988, 2485, 2840, 3976, 4970, 5281, 5680, 7952, 9940, 10562, 19880, 21124, 26405, 36967, 39760, 42248, 52810, 73934, 84496, 105620, 147868, 184835, 211240, 295736, 369670, 374951, 422480, 591472, 739340, 749902, 1478680, 1499804, 1874755, 2624657, 2957360, 2999608, 3749510, 5249314, 5999216, 7499020, 10498628, 13123285, 14998040, 20997256, 26246570, 29996080, 41994512, 52493140, 104986280, 209972560]

約数ペア:

[(1, 209972560), (2, 104986280), (4, 52493140), (5, 41994512), (7, 29996080), (8, 26246570), (10, 20997256), (14, 14998040), (16, 13123285), (20, 10498628), (28, 7499020), (35, 5999216), (40, 5249314), (56, 3749510), (70, 2999608), (71, 2957360), (80, 2624657), (112, 1874755), (140, 1499804), (142, 1478680), (280, 749902), (284, 739340), (355, 591472), (497, 422480), (560, 374951), (568, 369670), (710, 295736), (994, 211240), (1136, 184835), (1420, 147868), (1988, 105620), (2485, 84496), (2840, 73934), (3976, 52810), (4970, 42248), (5281, 39760), (5680, 36967), (7952, 26405), (9940, 21124), (10562, 19880)]