81611348

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1613}}^1$

素因数の和:1776

約数の個数: 48

約数和(自身を含む): 177152640

約数和(自身を除く): 95541292

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 139, 182, 278, 364, 556, 973, 1613, 1807, 1946, 3226, 3614, 3892, 6452, 7228, 11291, 12649, 20969, 22582, 25298, 41938, 45164, 50596, 83876, 146783, 224207, 293566, 448414, 587132, 896828, 1569449, 2914691, 3138898, 5829382, 6277796, 11658764, 20402837, 40805674, 81611348]

約数ペア:

[(1, 81611348), (2, 40805674), (4, 20402837), (7, 11658764), (13, 6277796), (14, 5829382), (26, 3138898), (28, 2914691), (52, 1569449), (91, 896828), (139, 587132), (182, 448414), (278, 293566), (364, 224207), (556, 146783), (973, 83876), (1613, 50596), (1807, 45164), (1946, 41938), (3226, 25298), (3614, 22582), (3892, 20969), (6452, 12649), (7228, 11291)]