20512606760

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{1009}}^1\times {\mathrm{1327}}^1$

素因数の和:2730

約数の個数: 64

約数和(自身を含む): 46354636800

約数和(自身を除く): 25842030040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1009, 1327, 1532, 1915, 2018, 2654, 3064, 3830, 4036, 5045, 5308, 6635, 7660, 8072, 10090, 10616, 13270, 15320, 20180, 26540, 40360, 53080, 386447, 508241, 772894, 1016482, 1338943, 1545788, 1932235, 2032964, 2541205, 2677886, 3091576, 3864470, 4065928, 5082410, 5355772, 6694715, 7728940, 10164820, 10711544, 13389430, 15457880, 20329640, 26778860, 53557720, 512815169, 1025630338, 2051260676, 2564075845, 4102521352, 5128151690, 10256303380, 20512606760]

約数ペア:

[(1, 20512606760), (2, 10256303380), (4, 5128151690), (5, 4102521352), (8, 2564075845), (10, 2051260676), (20, 1025630338), (40, 512815169), (383, 53557720), (766, 26778860), (1009, 20329640), (1327, 15457880), (1532, 13389430), (1915, 10711544), (2018, 10164820), (2654, 7728940), (3064, 6694715), (3830, 5355772), (4036, 5082410), (5045, 4065928), (5308, 3864470), (6635, 3091576), (7660, 2677886), (8072, 2541205), (10090, 2032964), (10616, 1932235), (13270, 1545788), (15320, 1338943), (20180, 1016482), (26540, 772894), (40360, 508241), (53080, 386447)]