12915305

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 17853696

約数和(自身を除く): 4938391

約数列:

[1, 5, 13, 23, 53, 65, 115, 163, 265, 299, 689, 815, 1219, 1495, 2119, 3445, 3749, 6095, 8639, 10595, 15847, 18745, 43195, 48737, 79235, 112307, 198697, 243685, 561535, 993485, 2583061, 12915305]

約数ペア:

[(1, 12915305), (5, 2583061), (13, 993485), (23, 561535), (53, 243685), (65, 198697), (115, 112307), (163, 79235), (265, 48737), (299, 43195), (689, 18745), (815, 15847), (1219, 10595), (1495, 8639), (2119, 6095), (3445, 3749)]