19876099780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1243811}}^1$

素因数の和:1243884

約数の個数: 48

約数和(自身を含む): 45135449856

約数和(自身を除く): 25259350076

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 340, 470, 799, 940, 1598, 3196, 3995, 7990, 15980, 1243811, 2487622, 4975244, 6219055, 12438110, 21144787, 24876220, 42289574, 58459117, 84579148, 105723935, 116918234, 211447870, 233836468, 292295585, 422895740, 584591170, 993804989, 1169182340, 1987609978, 3975219956, 4969024945, 9938049890, 19876099780]

約数ペア:

[(1, 19876099780), (2, 9938049890), (4, 4969024945), (5, 3975219956), (10, 1987609978), (17, 1169182340), (20, 993804989), (34, 584591170), (47, 422895740), (68, 292295585), (85, 233836468), (94, 211447870), (170, 116918234), (188, 105723935), (235, 84579148), (340, 58459117), (470, 42289574), (799, 24876220), (940, 21144787), (1598, 12438110), (3196, 6219055), (3995, 4975244), (7990, 2487622), (15980, 1243811)]