79989201

素因数分解:

$3^4\times {\mathrm{499}}^1\times {\mathrm{1979}}^1$

素因数の和:2490

約数の個数: 20

約数和(自身を含む): 119790000

約数和(自身を除く): 39800799

約数列:

[1, 3, 9, 27, 81, 499, 1497, 1979, 4491, 5937, 13473, 17811, 40419, 53433, 160299, 987521, 2962563, 8887689, 26663067, 79989201]

約数ペア:

[(1, 79989201), (3, 26663067), (9, 8887689), (27, 2962563), (81, 987521), (499, 160299), (1497, 53433), (1979, 40419), (4491, 17811), (5937, 13473)]