678742340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1996301}}^1$

素因数の和:1996327

約数の個数: 24

約数和(自身を含む): 1509204312

約数和(自身を除く): 830461972

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1996301, 3992602, 7985204, 9981505, 19963010, 33937117, 39926020, 67874234, 135748468, 169685585, 339371170, 678742340]

約数ペア:

[(1, 678742340), (2, 339371170), (4, 169685585), (5, 135748468), (10, 67874234), (17, 39926020), (20, 33937117), (34, 19963010), (68, 9981505), (85, 7985204), (170, 3992602), (340, 1996301)]