289455215

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{739}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 433059840

約数和(自身を除く): 143604625

約数列:

[1, 5, 7, 19, 31, 35, 95, 133, 155, 217, 361, 589, 665, 739, 1085, 1805, 2527, 2945, 3695, 4123, 5173, 11191, 12635, 14041, 20615, 22909, 25865, 55955, 70205, 78337, 98287, 114545, 160363, 266779, 391685, 435271, 491435, 801815, 1333895, 1867453, 2176355, 3046897, 8270149, 9337265, 15234485, 41350745, 57891043, 289455215]

約数ペア:

[(1, 289455215), (5, 57891043), (7, 41350745), (19, 15234485), (31, 9337265), (35, 8270149), (95, 3046897), (133, 2176355), (155, 1867453), (217, 1333895), (361, 801815), (589, 491435), (665, 435271), (739, 391685), (1085, 266779), (1805, 160363), (2527, 114545), (2945, 98287), (3695, 78337), (4123, 70205), (5173, 55955), (11191, 25865), (12635, 22909), (14041, 20615)]