255352720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{65141}}^1$

素因数の和:65168

約数の個数: 60

約数和(自身を含む): 690635484

約数和(自身を除く): 435282764

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 65141, 130282, 260564, 325705, 455987, 521128, 651410, 911974, 1042256, 1302820, 1823948, 2279935, 2605640, 3191909, 3647896, 4559870, 5211280, 6383818, 7295792, 9119740, 12767636, 15959545, 18239480, 25535272, 31919090, 36478960, 51070544, 63838180, 127676360, 255352720]

約数ペア:

[(1, 255352720), (2, 127676360), (4, 63838180), (5, 51070544), (7, 36478960), (8, 31919090), (10, 25535272), (14, 18239480), (16, 15959545), (20, 12767636), (28, 9119740), (35, 7295792), (40, 6383818), (49, 5211280), (56, 4559870), (70, 3647896), (80, 3191909), (98, 2605640), (112, 2279935), (140, 1823948), (196, 1302820), (245, 1042256), (280, 911974), (392, 651410), (490, 521128), (560, 455987), (784, 325705), (980, 260564), (1960, 130282), (3920, 65141)]