81628855

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{4327}}^1$

素因数の和:4364

約数の個数: 32

約数和(自身を含む): 124646400

約数和(自身を除く): 43017545

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 343, 385, 539, 1715, 2695, 3773, 4327, 18865, 21635, 30289, 47597, 151445, 212023, 237985, 333179, 1060115, 1484161, 1665895, 2332253, 7420805, 11661265, 16325771, 81628855]

約数ペア:

[(1, 81628855), (5, 16325771), (7, 11661265), (11, 7420805), (35, 2332253), (49, 1665895), (55, 1484161), (77, 1060115), (245, 333179), (343, 237985), (385, 212023), (539, 151445), (1715, 47597), (2695, 30289), (3773, 21635), (4327, 18865)]