20147681440

素因数分解:

$2^5\times 5^1\times {\mathrm{1049}}^1\times {\mathrm{120041}}^1$

素因数の和:121105

約数の個数: 48

約数和(自身を含む): 47644669800

約数和(自身を除く): 27496988360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1049, 2098, 4196, 5245, 8392, 10490, 16784, 20980, 33568, 41960, 83920, 120041, 167840, 240082, 480164, 600205, 960328, 1200410, 1920656, 2400820, 3841312, 4801640, 9603280, 19206560, 125923009, 251846018, 503692036, 629615045, 1007384072, 1259230090, 2014768144, 2518460180, 4029536288, 5036920360, 10073840720, 20147681440]

約数ペア:

[(1, 20147681440), (2, 10073840720), (4, 5036920360), (5, 4029536288), (8, 2518460180), (10, 2014768144), (16, 1259230090), (20, 1007384072), (32, 629615045), (40, 503692036), (80, 251846018), (160, 125923009), (1049, 19206560), (2098, 9603280), (4196, 4801640), (5245, 3841312), (8392, 2400820), (10490, 1920656), (16784, 1200410), (20980, 960328), (33568, 600205), (41960, 480164), (83920, 240082), (120041, 167840)]