20778897248

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{133417}}^1$

素因数の和:133615

約数の個数: 48

約数和(自身を含む): 42497368704

約数和(自身を除く): 21718471456

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 157, 248, 314, 496, 628, 992, 1256, 2512, 4867, 5024, 9734, 19468, 38936, 77872, 133417, 155744, 266834, 533668, 1067336, 2134672, 4135927, 4269344, 8271854, 16543708, 20946469, 33087416, 41892938, 66174832, 83785876, 132349664, 167571752, 335143504, 649340539, 670287008, 1298681078, 2597362156, 5194724312, 10389448624, 20778897248]

約数ペア:

[(1, 20778897248), (2, 10389448624), (4, 5194724312), (8, 2597362156), (16, 1298681078), (31, 670287008), (32, 649340539), (62, 335143504), (124, 167571752), (157, 132349664), (248, 83785876), (314, 66174832), (496, 41892938), (628, 33087416), (992, 20946469), (1256, 16543708), (2512, 8271854), (4867, 4269344), (5024, 4135927), (9734, 2134672), (19468, 1067336), (38936, 533668), (77872, 266834), (133417, 155744)]