678901477310

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{9967721}}^1$

素因数の和:9967881

約数の個数: 48

約数和(自身を含む): 1431763588080

約数和(自身を除く): 752862110770

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 139, 245, 278, 490, 695, 973, 1390, 1946, 4865, 6811, 9730, 13622, 34055, 68110, 9967721, 19935442, 49838605, 69774047, 99677210, 139548094, 348870235, 488418329, 697740470, 976836658, 1385513219, 2442091645, 2771026438, 4884183290, 6927566095, 9698592533, 13855132190, 19397185066, 48492962665, 67890147731, 96985925330, 135780295462, 339450738655, 678901477310]

約数ペア:

[(1, 678901477310), (2, 339450738655), (5, 135780295462), (7, 96985925330), (10, 67890147731), (14, 48492962665), (35, 19397185066), (49, 13855132190), (70, 9698592533), (98, 6927566095), (139, 4884183290), (245, 2771026438), (278, 2442091645), (490, 1385513219), (695, 976836658), (973, 697740470), (1390, 488418329), (1946, 348870235), (4865, 139548094), (6811, 99677210), (9730, 69774047), (13622, 49838605), (34055, 19935442), (68110, 9967721)]