28581455

素因数分解:

$5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2713}}^1$

素因数の和:2775

約数の個数: 24

約数和(自身を含む): 40840272

約数和(自身を除く): 12258817

約数列:

[1, 5, 7, 35, 43, 49, 215, 245, 301, 1505, 2107, 2713, 10535, 13565, 18991, 94955, 116659, 132937, 583295, 664685, 816613, 4083065, 5716291, 28581455]

約数ペア:

[(1, 28581455), (5, 5716291), (7, 4083065), (35, 816613), (43, 664685), (49, 583295), (215, 132937), (245, 116659), (301, 94955), (1505, 18991), (2107, 13565), (2713, 10535)]