128236985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{523}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 169776000

約数和(自身を除く): 41539015

約数列:

[1, 5, 19, 29, 89, 95, 145, 445, 523, 551, 1691, 2581, 2615, 2755, 8455, 9937, 12905, 15167, 46547, 49039, 49685, 75835, 232735, 245195, 288173, 884393, 1349863, 1440865, 4421965, 6749315, 25647397, 128236985]

約数ペア:

[(1, 128236985), (5, 25647397), (19, 6749315), (29, 4421965), (89, 1440865), (95, 1349863), (145, 884393), (445, 288173), (523, 245195), (551, 232735), (1691, 75835), (2581, 49685), (2615, 49039), (2755, 46547), (8455, 15167), (9937, 12905)]