640703470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{37}}^1\times {\mathrm{1301}}^1$

素因数の和:1378

約数の個数: 64

約数和(自身を含む): 1303791552

約数和(自身を除く): 663088082

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 121, 185, 242, 370, 407, 605, 814, 1210, 1301, 1331, 2035, 2602, 2662, 4070, 4477, 6505, 6655, 8954, 13010, 13310, 14311, 22385, 28622, 44770, 48137, 49247, 71555, 96274, 98494, 143110, 157421, 240685, 246235, 314842, 481370, 492470, 529507, 787105, 1059014, 1574210, 1731631, 2647535, 3463262, 5295070, 5824577, 8658155, 11649154, 17316310, 29122885, 58245770, 64070347, 128140694, 320351735, 640703470]

約数ペア:

[(1, 640703470), (2, 320351735), (5, 128140694), (10, 64070347), (11, 58245770), (22, 29122885), (37, 17316310), (55, 11649154), (74, 8658155), (110, 5824577), (121, 5295070), (185, 3463262), (242, 2647535), (370, 1731631), (407, 1574210), (605, 1059014), (814, 787105), (1210, 529507), (1301, 492470), (1331, 481370), (2035, 314842), (2602, 246235), (2662, 240685), (4070, 157421), (4477, 143110), (6505, 98494), (6655, 96274), (8954, 71555), (13010, 49247), (13310, 48137), (14311, 44770), (22385, 28622)]