256710938

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1801}}^1$

素因数の和:1875

約数の個数: 48

約数和(自身を含む): 460158720

約数和(自身を除く): 203447782

約数列:

[1, 2, 11, 19, 22, 31, 38, 62, 121, 209, 242, 341, 418, 589, 682, 1178, 1801, 2299, 3602, 3751, 4598, 6479, 7502, 12958, 19811, 34219, 39622, 55831, 68438, 71269, 111662, 142538, 217921, 376409, 435842, 614141, 752818, 1060789, 1228282, 2121578, 4140499, 6755551, 8280998, 11668679, 13511102, 23337358, 128355469, 256710938]

約数ペア:

[(1, 256710938), (2, 128355469), (11, 23337358), (19, 13511102), (22, 11668679), (31, 8280998), (38, 6755551), (62, 4140499), (121, 2121578), (209, 1228282), (242, 1060789), (341, 752818), (418, 614141), (589, 435842), (682, 376409), (1178, 217921), (1801, 142538), (2299, 111662), (3602, 71269), (3751, 68438), (4598, 55831), (6479, 39622), (7502, 34219), (12958, 19811)]