81161704

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{780401}}^1$

素因数の和:780420

約数の個数: 16

約数和(自身を含む): 163884420

約数和(自身を除く): 82722716

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 780401, 1560802, 3121604, 6243208, 10145213, 20290426, 40580852, 81161704]

約数ペア:

[(1, 81161704), (2, 40580852), (4, 20290426), (8, 10145213), (13, 6243208), (26, 3121604), (52, 1560802), (104, 780401)]