81818254

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1\times {\mathrm{359}}^1$

素因数の和:664

約数の個数: 32

約数和(自身を含む): 143216640

約数和(自身を除く): 61398386

約数列:

[1, 2, 7, 14, 73, 146, 223, 359, 446, 511, 718, 1022, 1561, 2513, 3122, 5026, 16279, 26207, 32558, 52414, 80057, 113953, 160114, 183449, 227906, 366898, 560399, 1120798, 5844161, 11688322, 40909127, 81818254]

約数ペア:

[(1, 81818254), (2, 40909127), (7, 11688322), (14, 5844161), (73, 1120798), (146, 560399), (223, 366898), (359, 227906), (446, 183449), (511, 160114), (718, 113953), (1022, 80057), (1561, 52414), (2513, 32558), (3122, 26207), (5026, 16279)]