81348790

素因数分解:

$2^1\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{6311}}^1$

素因数の和:7607

約数の個数: 16

約数和(自身を含む): 146564640

約数和(自身を除く): 65215850

約数列:

[1, 2, 5, 10, 1289, 2578, 6311, 6445, 12622, 12890, 31555, 63110, 8134879, 16269758, 40674395, 81348790]

約数ペア:

[(1, 81348790), (2, 40674395), (5, 16269758), (10, 8134879), (1289, 63110), (2578, 31555), (6311, 12890), (6445, 12622)]