320206905

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4027}}^1$

素因数の和:4091

約数の個数: 64

約数和(自身を含む): 618700800

約数和(自身を除く): 298493895

約数列:

[1, 3, 5, 9, 15, 19, 27, 31, 45, 57, 93, 95, 135, 155, 171, 279, 285, 465, 513, 589, 837, 855, 1395, 1767, 2565, 2945, 4027, 4185, 5301, 8835, 12081, 15903, 20135, 26505, 36243, 60405, 76513, 79515, 108729, 124837, 181215, 229539, 374511, 382565, 543645, 624185, 688617, 1123533, 1147695, 1872555, 2065851, 2371903, 3370599, 3443085, 5617665, 7115709, 10329255, 11859515, 16852995, 21347127, 35578545, 64041381, 106735635, 320206905]

約数ペア:

[(1, 320206905), (3, 106735635), (5, 64041381), (9, 35578545), (15, 21347127), (19, 16852995), (27, 11859515), (31, 10329255), (45, 7115709), (57, 5617665), (93, 3443085), (95, 3370599), (135, 2371903), (155, 2065851), (171, 1872555), (279, 1147695), (285, 1123533), (465, 688617), (513, 624185), (589, 543645), (837, 382565), (855, 374511), (1395, 229539), (1767, 181215), (2565, 124837), (2945, 108729), (4027, 79515), (4185, 76513), (5301, 60405), (8835, 36243), (12081, 26505), (15903, 20135)]