1686620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{499}}^1$

素因数の和:534

約数の個数: 36

約数和(自身を含む): 3843000

約数和(自身を除く): 2156380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 499, 676, 845, 998, 1690, 1996, 2495, 3380, 4990, 6487, 9980, 12974, 25948, 32435, 64870, 84331, 129740, 168662, 337324, 421655, 843310, 1686620]

約数ペア:

[(1, 1686620), (2, 843310), (4, 421655), (5, 337324), (10, 168662), (13, 129740), (20, 84331), (26, 64870), (52, 32435), (65, 25948), (130, 12974), (169, 9980), (260, 6487), (338, 4990), (499, 3380), (676, 2495), (845, 1996), (998, 1690)]