20857060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7841}}^1$

素因数の和:7876

約数の個数: 48

約数和(自身を含む): 52698240

約数和(自身を除く): 31841180

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7841, 15682, 31364, 39205, 54887, 78410, 109774, 148979, 156820, 219548, 274435, 297958, 548870, 595916, 744895, 1042853, 1097740, 1489790, 2085706, 2979580, 4171412, 5214265, 10428530, 20857060]

約数ペア:

[(1, 20857060), (2, 10428530), (4, 5214265), (5, 4171412), (7, 2979580), (10, 2085706), (14, 1489790), (19, 1097740), (20, 1042853), (28, 744895), (35, 595916), (38, 548870), (70, 297958), (76, 274435), (95, 219548), (133, 156820), (140, 148979), (190, 109774), (266, 78410), (380, 54887), (532, 39205), (665, 31364), (1330, 15682), (2660, 7841)]