289766820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{689921}}^1$

素因数の和:689940

約数の個数: 48

約数和(自身を含む): 927255168

約数和(自身を除く): 637488348

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, 689921, 1379842, 2069763, 2759684, 3449605, 4139526, 4829447, 6899210, 8279052, 9658894, 10348815, 13798420, 14488341, 19317788, 20697630, 24147235, 28976682, 41395260, 48294470, 57953364, 72441705, 96588940, 144883410, 289766820]

約数ペア:

[(1, 289766820), (2, 144883410), (3, 96588940), (4, 72441705), (5, 57953364), (6, 48294470), (7, 41395260), (10, 28976682), (12, 24147235), (14, 20697630), (15, 19317788), (20, 14488341), (21, 13798420), (28, 10348815), (30, 9658894), (35, 8279052), (42, 6899210), (60, 4829447), (70, 4139526), (84, 3449605), (105, 2759684), (140, 2069763), (210, 1379842), (420, 689921)]