280394800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{419}}^1$

素因数の和:683

約数の個数: 120

約数和(自身を含む): 774950400

約数和(自身を除く): 494555600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 239, 280, 350, 400, 419, 478, 560, 700, 838, 956, 1195, 1400, 1673, 1676, 1912, 2095, 2390, 2800, 2933, 3346, 3352, 3824, 4190, 4780, 5866, 5975, 6692, 6704, 8365, 8380, 9560, 10475, 11732, 11950, 13384, 14665, 16730, 16760, 19120, 20950, 23464, 23900, 26768, 29330, 33460, 33520, 41825, 41900, 46928, 47800, 58660, 66920, 73325, 83650, 83800, 95600, 100141, 117320, 133840, 146650, 167300, 167600, 200282, 234640, 293300, 334600, 400564, 500705, 586600, 669200, 700987, 801128, 1001410, 1173200, 1401974, 1602256, 2002820, 2503525, 2803948, 3504935, 4005640, 5007050, 5607896, 7009870, 8011280, 10014100, 11215792, 14019740, 17524675, 20028200, 28039480, 35049350, 40056400, 56078960, 70098700, 140197400, 280394800]

約数ペア:

[(1, 280394800), (2, 140197400), (4, 70098700), (5, 56078960), (7, 40056400), (8, 35049350), (10, 28039480), (14, 20028200), (16, 17524675), (20, 14019740), (25, 11215792), (28, 10014100), (35, 8011280), (40, 7009870), (50, 5607896), (56, 5007050), (70, 4005640), (80, 3504935), (100, 2803948), (112, 2503525), (140, 2002820), (175, 1602256), (200, 1401974), (239, 1173200), (280, 1001410), (350, 801128), (400, 700987), (419, 669200), (478, 586600), (560, 500705), (700, 400564), (838, 334600), (956, 293300), (1195, 234640), (1400, 200282), (1673, 167600), (1676, 167300), (1912, 146650), (2095, 133840), (2390, 117320), (2800, 100141), (2933, 95600), (3346, 83800), (3352, 83650), (3824, 73325), (4190, 66920), (4780, 58660), (5866, 47800), (5975, 46928), (6692, 41900), (6704, 41825), (8365, 33520), (8380, 33460), (9560, 29330), (10475, 26768), (11732, 23900), (11950, 23464), (13384, 20950), (14665, 19120), (16730, 16760)]