20904572912

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{601259}}^1$

素因数の和:601361

約数の個数: 40

約数和(自身を含む): 42273388080

約数和(自身を除く): 21368815168

約数列:

[1, 2, 4, 8, 16, 41, 53, 82, 106, 164, 212, 328, 424, 656, 848, 2173, 4346, 8692, 17384, 34768, 601259, 1202518, 2405036, 4810072, 9620144, 24651619, 31866727, 49303238, 63733454, 98606476, 127466908, 197212952, 254933816, 394425904, 509867632, 1306535807, 2613071614, 5226143228, 10452286456, 20904572912]

約数ペア:

[(1, 20904572912), (2, 10452286456), (4, 5226143228), (8, 2613071614), (16, 1306535807), (41, 509867632), (53, 394425904), (82, 254933816), (106, 197212952), (164, 127466908), (212, 98606476), (328, 63733454), (424, 49303238), (656, 31866727), (848, 24651619), (2173, 9620144), (4346, 4810072), (8692, 2405036), (17384, 1202518), (34768, 601259)]