664680620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1954943}}^1$

素因数の和:1954969

約数の個数: 24

約数和(自身を含む): 1477937664

約数和(自身を除く): 813257044

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1954943, 3909886, 7819772, 9774715, 19549430, 33234031, 39098860, 66468062, 132936124, 166170155, 332340310, 664680620]

約数ペア:

[(1, 664680620), (2, 332340310), (4, 166170155), (5, 132936124), (10, 66468062), (17, 39098860), (20, 33234031), (34, 19549430), (68, 9774715), (85, 7819772), (170, 3909886), (340, 1954943)]