81669616

素因数分解:

$2^4\times 7^1\times {\mathrm{331}}^1\times {\mathrm{2203}}^1$

素因数の和:2549

約数の個数: 40

約数和(自身を含む): 181468544

約数和(自身を除く): 99798928

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 331, 662, 1324, 2203, 2317, 2648, 4406, 4634, 5296, 8812, 9268, 15421, 17624, 18536, 30842, 35248, 37072, 61684, 123368, 246736, 729193, 1458386, 2916772, 5104351, 5833544, 10208702, 11667088, 20417404, 40834808, 81669616]

約数ペア:

[(1, 81669616), (2, 40834808), (4, 20417404), (7, 11667088), (8, 10208702), (14, 5833544), (16, 5104351), (28, 2916772), (56, 1458386), (112, 729193), (331, 246736), (662, 123368), (1324, 61684), (2203, 37072), (2317, 35248), (2648, 30842), (4406, 18536), (4634, 17624), (5296, 15421), (8812, 9268)]