247758280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{313}}^1$

素因数の和:599

約数の個数: 128

約数和(自身を含む): 699943680

約数和(自身を除く): 452185400

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 257, 280, 308, 313, 385, 440, 514, 616, 626, 770, 1028, 1252, 1285, 1540, 1565, 1799, 2056, 2191, 2504, 2570, 2827, 3080, 3130, 3443, 3598, 4382, 5140, 5654, 6260, 6886, 7196, 8764, 8995, 10280, 10955, 11308, 12520, 13772, 14135, 14392, 17215, 17528, 17990, 19789, 21910, 22616, 24101, 27544, 28270, 34430, 35980, 39578, 43820, 48202, 56540, 68860, 71960, 79156, 80441, 87640, 96404, 98945, 113080, 120505, 137720, 158312, 160882, 192808, 197890, 241010, 321764, 395780, 402205, 482020, 563087, 643528, 791560, 804410, 884851, 964040, 1126174, 1608820, 1769702, 2252348, 2815435, 3217640, 3539404, 4424255, 4504696, 5630870, 6193957, 7078808, 8848510, 11261740, 12387914, 17697020, 22523480, 24775828, 30969785, 35394040, 49551656, 61939570, 123879140, 247758280]

約数ペア:

[(1, 247758280), (2, 123879140), (4, 61939570), (5, 49551656), (7, 35394040), (8, 30969785), (10, 24775828), (11, 22523480), (14, 17697020), (20, 12387914), (22, 11261740), (28, 8848510), (35, 7078808), (40, 6193957), (44, 5630870), (55, 4504696), (56, 4424255), (70, 3539404), (77, 3217640), (88, 2815435), (110, 2252348), (140, 1769702), (154, 1608820), (220, 1126174), (257, 964040), (280, 884851), (308, 804410), (313, 791560), (385, 643528), (440, 563087), (514, 482020), (616, 402205), (626, 395780), (770, 321764), (1028, 241010), (1252, 197890), (1285, 192808), (1540, 160882), (1565, 158312), (1799, 137720), (2056, 120505), (2191, 113080), (2504, 98945), (2570, 96404), (2827, 87640), (3080, 80441), (3130, 79156), (3443, 71960), (3598, 68860), (4382, 56540), (5140, 48202), (5654, 43820), (6260, 39578), (6886, 35980), (7196, 34430), (8764, 28270), (8995, 27544), (10280, 24101), (10955, 22616), (11308, 21910), (12520, 19789), (13772, 17990), (14135, 17528), (14392, 17215)]