81367208

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{2887}}^1$

素因数の和:3177

約数の個数: 32

約数和(自身を含む): 164962560

約数和(自身を除く): 83595352

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 271, 542, 1084, 2168, 2887, 3523, 5774, 7046, 11548, 14092, 23096, 28184, 37531, 75062, 150124, 300248, 782377, 1564754, 3129508, 6259016, 10170901, 20341802, 40683604, 81367208]

約数ペア:

[(1, 81367208), (2, 40683604), (4, 20341802), (8, 10170901), (13, 6259016), (26, 3129508), (52, 1564754), (104, 782377), (271, 300248), (542, 150124), (1084, 75062), (2168, 37531), (2887, 28184), (3523, 23096), (5774, 14092), (7046, 11548)]