66974525

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:270

約数の個数: 36

約数和(自身を含む): 90283284

約数和(自身を除く): 23308759

約数列:

[1, 5, 19, 25, 41, 95, 181, 205, 361, 475, 779, 905, 1025, 1805, 3439, 3895, 4525, 7421, 9025, 14801, 17195, 19475, 37105, 65341, 74005, 85975, 140999, 185525, 326705, 370025, 704995, 1633525, 2678981, 3524975, 13394905, 66974525]

約数ペア:

[(1, 66974525), (5, 13394905), (19, 3524975), (25, 2678981), (41, 1633525), (95, 704995), (181, 370025), (205, 326705), (361, 185525), (475, 140999), (779, 85975), (905, 74005), (1025, 65341), (1805, 37105), (3439, 19475), (3895, 17195), (4525, 14801), (7421, 9025)]