81439736

素因数分解:

$2^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{9631}}^1$

素因数の和:9795

約数の個数: 32

約数和(自身を含む): 175687680

約数和(自身を除く): 94247944

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 151, 302, 604, 1057, 1208, 2114, 4228, 8456, 9631, 19262, 38524, 67417, 77048, 134834, 269668, 539336, 1454281, 2908562, 5817124, 10179967, 11634248, 20359934, 40719868, 81439736]

約数ペア:

[(1, 81439736), (2, 40719868), (4, 20359934), (7, 11634248), (8, 10179967), (14, 5817124), (28, 2908562), (56, 1454281), (151, 539336), (302, 269668), (604, 134834), (1057, 77048), (1208, 67417), (2114, 38524), (4228, 19262), (8456, 9631)]