20199806984

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^2\times {\mathrm{999199}}^1$

素因数の和:999250

約数の個数: 48

約数和(自身を含む): 45683424000

約数和(自身を除く): 25483617016

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 361, 532, 722, 1064, 1444, 2527, 2888, 5054, 10108, 20216, 999199, 1998398, 3996796, 6994393, 7993592, 13988786, 18984781, 27977572, 37969562, 55955144, 75939124, 132893467, 151878248, 265786934, 360710839, 531573868, 721421678, 1063147736, 1442843356, 2524975873, 2885686712, 5049951746, 10099903492, 20199806984]

約数ペア:

[(1, 20199806984), (2, 10099903492), (4, 5049951746), (7, 2885686712), (8, 2524975873), (14, 1442843356), (19, 1063147736), (28, 721421678), (38, 531573868), (56, 360710839), (76, 265786934), (133, 151878248), (152, 132893467), (266, 75939124), (361, 55955144), (532, 37969562), (722, 27977572), (1064, 18984781), (1444, 13988786), (2527, 7993592), (2888, 6994393), (5054, 3996796), (10108, 1998398), (20216, 999199)]