20893180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13567}}^1$

素因数の和:13594

約数の個数: 48

約数和(自身を含む): 54706176

約数和(自身を除く): 33812996

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 13567, 27134, 54268, 67835, 94969, 135670, 149237, 189938, 271340, 298474, 379876, 474845, 596948, 746185, 949690, 1044659, 1492370, 1899380, 2089318, 2984740, 4178636, 5223295, 10446590, 20893180]

約数ペア:

[(1, 20893180), (2, 10446590), (4, 5223295), (5, 4178636), (7, 2984740), (10, 2089318), (11, 1899380), (14, 1492370), (20, 1044659), (22, 949690), (28, 746185), (35, 596948), (44, 474845), (55, 379876), (70, 298474), (77, 271340), (110, 189938), (140, 149237), (154, 135670), (220, 94969), (308, 67835), (385, 54268), (770, 27134), (1540, 13567)]