81858172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{26203}}^1$

素因数の和:26289

約数の個数: 24

約数和(自身を含む): 158481792

約数和(自身を除く): 76623620

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 26203, 52406, 104812, 288233, 576466, 1152932, 1860413, 3720826, 7441652, 20464543, 40929086, 81858172]

約数ペア:

[(1, 81858172), (2, 40929086), (4, 20464543), (11, 7441652), (22, 3720826), (44, 1860413), (71, 1152932), (142, 576466), (284, 288233), (781, 104812), (1562, 52406), (3124, 26203)]