201006820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{443}}^1\times {\mathrm{463}}^1$

素因数の和:929

約数の個数: 72

約数和(自身を含む): 493202304

約数和(自身を除く): 292195484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 443, 463, 490, 886, 926, 980, 1772, 1852, 2215, 2315, 3101, 3241, 4430, 4630, 6202, 6482, 8860, 9260, 12404, 12964, 15505, 16205, 21707, 22687, 31010, 32410, 43414, 45374, 62020, 64820, 86828, 90748, 108535, 113435, 205109, 217070, 226870, 410218, 434140, 453740, 820436, 1025545, 1435763, 2051090, 2871526, 4102180, 5743052, 7178815, 10050341, 14357630, 20100682, 28715260, 40201364, 50251705, 100503410, 201006820]

約数ペア:

[(1, 201006820), (2, 100503410), (4, 50251705), (5, 40201364), (7, 28715260), (10, 20100682), (14, 14357630), (20, 10050341), (28, 7178815), (35, 5743052), (49, 4102180), (70, 2871526), (98, 2051090), (140, 1435763), (196, 1025545), (245, 820436), (443, 453740), (463, 434140), (490, 410218), (886, 226870), (926, 217070), (980, 205109), (1772, 113435), (1852, 108535), (2215, 90748), (2315, 86828), (3101, 64820), (3241, 62020), (4430, 45374), (4630, 43414), (6202, 32410), (6482, 31010), (8860, 22687), (9260, 21707), (12404, 16205), (12964, 15505)]