64720005

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{2579}}^1$

素因数の和:2833

約数の個数: 32

約数和(自身を含む): 118886400

約数和(自身を除く): 54166395

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 239, 717, 1195, 1673, 2579, 3585, 5019, 7737, 8365, 12895, 18053, 25095, 38685, 54159, 90265, 270795, 616381, 1849143, 3081905, 4314667, 9245715, 12944001, 21573335, 64720005]

約数ペア:

[(1, 64720005), (3, 21573335), (5, 12944001), (7, 9245715), (15, 4314667), (21, 3081905), (35, 1849143), (105, 616381), (239, 270795), (717, 90265), (1195, 54159), (1673, 38685), (2579, 25095), (3585, 18053), (5019, 12895), (7737, 8365)]