40005

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{127}}^1$

素因数の和:145

約数の個数: 24

約数和(自身を含む): 79872

約数和(自身を除く): 39867

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 127, 315, 381, 635, 889, 1143, 1905, 2667, 4445, 5715, 8001, 13335, 40005]

約数ペア:

[(1, 40005), (3, 13335), (5, 8001), (7, 5715), (9, 4445), (15, 2667), (21, 1905), (35, 1143), (45, 889), (63, 635), (105, 381), (127, 315)]