81019088

素因数分解:

$2^4\times {\mathrm{239}}^1\times {\mathrm{21187}}^1$

素因数の和:21434

約数の個数: 20

約数和(自身を含む): 157638720

約数和(自身を除く): 76619632

約数列:

[1, 2, 4, 8, 16, 239, 478, 956, 1912, 3824, 21187, 42374, 84748, 169496, 338992, 5063693, 10127386, 20254772, 40509544, 81019088]

約数ペア:

[(1, 81019088), (2, 40509544), (4, 20254772), (8, 10127386), (16, 5063693), (239, 338992), (478, 169496), (956, 84748), (1912, 42374), (3824, 21187)]