66739640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151681}}^1$

素因数の和:151703

約数の個数: 32

約数和(自身を含む): 163816560

約数和(自身を除く): 97076920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 151681, 303362, 606724, 758405, 1213448, 1516810, 1668491, 3033620, 3336982, 6067240, 6673964, 8342455, 13347928, 16684910, 33369820, 66739640]

約数ペア:

[(1, 66739640), (2, 33369820), (4, 16684910), (5, 13347928), (8, 8342455), (10, 6673964), (11, 6067240), (20, 3336982), (22, 3033620), (40, 1668491), (44, 1516810), (55, 1213448), (88, 758405), (110, 606724), (220, 303362), (440, 151681)]