20464730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1301}}^1$

素因数の和:1343

約数の個数: 48

約数和(自身を含む): 43637832

約数和(自身を除く): 23173102

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 242, 286, 605, 715, 1210, 1301, 1430, 1573, 2602, 3146, 6505, 7865, 13010, 14311, 15730, 16913, 28622, 33826, 71555, 84565, 143110, 157421, 169130, 186043, 314842, 372086, 787105, 930215, 1574210, 1860430, 2046473, 4092946, 10232365, 20464730]

約数ペア:

[(1, 20464730), (2, 10232365), (5, 4092946), (10, 2046473), (11, 1860430), (13, 1574210), (22, 930215), (26, 787105), (55, 372086), (65, 314842), (110, 186043), (121, 169130), (130, 157421), (143, 143110), (242, 84565), (286, 71555), (605, 33826), (715, 28622), (1210, 16913), (1301, 15730), (1430, 14311), (1573, 13010), (2602, 7865), (3146, 6505)]