406427280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{241921}}^1$

素因数の和:241944

約数の個数: 80

約数和(自身を含む): 1439919744

約数和(自身を除く): 1033492464

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 241921, 483842, 725763, 967684, 1209605, 1451526, 1693447, 1935368, 2419210, 2903052, 3386894, 3628815, 3870736, 4838420, 5080341, 5806104, 6773788, 7257630, 8467235, 9676840, 10160682, 11612208, 13547576, 14515260, 16934470, 19353680, 20321364, 25401705, 27095152, 29030520, 33868940, 40642728, 50803410, 58061040, 67737880, 81285456, 101606820, 135475760, 203213640, 406427280]

約数ペア:

[(1, 406427280), (2, 203213640), (3, 135475760), (4, 101606820), (5, 81285456), (6, 67737880), (7, 58061040), (8, 50803410), (10, 40642728), (12, 33868940), (14, 29030520), (15, 27095152), (16, 25401705), (20, 20321364), (21, 19353680), (24, 16934470), (28, 14515260), (30, 13547576), (35, 11612208), (40, 10160682), (42, 9676840), (48, 8467235), (56, 7257630), (60, 6773788), (70, 5806104), (80, 5080341), (84, 4838420), (105, 3870736), (112, 3628815), (120, 3386894), (140, 2903052), (168, 2419210), (210, 1935368), (240, 1693447), (280, 1451526), (336, 1209605), (420, 967684), (560, 725763), (840, 483842), (1680, 241921)]