90809005

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{12781}}^1$

素因数の和:12829

約数の個数: 24

約数和(自身を含む): 131143320

約数和(自身を除く): 40334315

約数列:

[1, 5, 7, 29, 35, 49, 145, 203, 245, 1015, 1421, 7105, 12781, 63905, 89467, 370649, 447335, 626269, 1853245, 2594543, 3131345, 12972715, 18161801, 90809005]

約数ペア:

[(1, 90809005), (5, 18161801), (7, 12972715), (29, 3131345), (35, 2594543), (49, 1853245), (145, 626269), (203, 447335), (245, 370649), (1015, 89467), (1421, 63905), (7105, 12781)]