80186820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{190921}}^1$

素因数の和:190940

約数の個数: 48

約数和(自身を含む): 256599168

約数和(自身を除く): 176412348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 190921, 381842, 572763, 763684, 954605, 1145526, 1336447, 1909210, 2291052, 2672894, 2863815, 3818420, 4009341, 5345788, 5727630, 6682235, 8018682, 11455260, 13364470, 16037364, 20046705, 26728940, 40093410, 80186820]

約数ペア:

[(1, 80186820), (2, 40093410), (3, 26728940), (4, 20046705), (5, 16037364), (6, 13364470), (7, 11455260), (10, 8018682), (12, 6682235), (14, 5727630), (15, 5345788), (20, 4009341), (21, 3818420), (28, 2863815), (30, 2672894), (35, 2291052), (42, 1909210), (60, 1336447), (70, 1145526), (84, 954605), (105, 763684), (140, 572763), (210, 381842), (420, 190921)]