20185778865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1\times {\mathrm{17681}}^1$

素因数の和:17910

約数の個数: 64

約数和(自身を含む): 37643139072

約数和(自身を除く): 17457360207

約数列:

[1, 3, 5, 7, 15, 21, 35, 83, 105, 131, 249, 393, 415, 581, 655, 917, 1245, 1743, 1965, 2751, 2905, 4585, 8715, 10873, 13755, 17681, 32619, 53043, 54365, 76111, 88405, 123767, 163095, 228333, 265215, 371301, 380555, 618835, 1141665, 1467523, 1856505, 2316211, 4402569, 6948633, 7337615, 10272661, 11581055, 16213477, 22012845, 30817983, 34743165, 48640431, 51363305, 81067385, 154089915, 192245513, 243202155, 576736539, 961227565, 1345718591, 2883682695, 4037155773, 6728592955, 20185778865]

約数ペア:

[(1, 20185778865), (3, 6728592955), (5, 4037155773), (7, 2883682695), (15, 1345718591), (21, 961227565), (35, 576736539), (83, 243202155), (105, 192245513), (131, 154089915), (249, 81067385), (393, 51363305), (415, 48640431), (581, 34743165), (655, 30817983), (917, 22012845), (1245, 16213477), (1743, 11581055), (1965, 10272661), (2751, 7337615), (2905, 6948633), (4585, 4402569), (8715, 2316211), (10873, 1856505), (13755, 1467523), (17681, 1141665), (32619, 618835), (53043, 380555), (54365, 371301), (76111, 265215), (88405, 228333), (123767, 163095)]