20204360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{977}}^1$

素因数の和:1046

約数の個数: 64

約数和(自身を含む): 50699520

約数和(自身を除く): 30495160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 940, 977, 1034, 1880, 1954, 2068, 2585, 3908, 4136, 4885, 5170, 7816, 9770, 10340, 10747, 19540, 20680, 21494, 39080, 42988, 45919, 53735, 85976, 91838, 107470, 183676, 214940, 229595, 367352, 429880, 459190, 505109, 918380, 1010218, 1836760, 2020436, 2525545, 4040872, 5051090, 10102180, 20204360]

約数ペア:

[(1, 20204360), (2, 10102180), (4, 5051090), (5, 4040872), (8, 2525545), (10, 2020436), (11, 1836760), (20, 1010218), (22, 918380), (40, 505109), (44, 459190), (47, 429880), (55, 367352), (88, 229595), (94, 214940), (110, 183676), (188, 107470), (220, 91838), (235, 85976), (376, 53735), (440, 45919), (470, 42988), (517, 39080), (940, 21494), (977, 20680), (1034, 19540), (1880, 10747), (1954, 10340), (2068, 9770), (2585, 7816), (3908, 5170), (4136, 4885)]