81837665

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1373}}^1$

素因数の和:1529

約数の個数: 32

約数和(自身を含む): 121879296

約数和(自身を除く): 40041631

約数列:

[1, 5, 7, 13, 35, 65, 91, 131, 455, 655, 917, 1373, 1703, 4585, 6865, 8515, 9611, 11921, 17849, 48055, 59605, 89245, 124943, 179863, 624715, 899315, 1259041, 2338219, 6295205, 11691095, 16367533, 81837665]

約数ペア:

[(1, 81837665), (5, 16367533), (7, 11691095), (13, 6295205), (35, 2338219), (65, 1259041), (91, 899315), (131, 624715), (455, 179863), (655, 124943), (917, 89245), (1373, 59605), (1703, 48055), (4585, 17849), (6865, 11921), (8515, 9611)]