66879760

素因数分解:

$2^4\times 5^1\times {\mathrm{835997}}^1$

素因数の和:836010

約数の個数: 20

約数和(自身を含む): 155495628

約数和(自身を除く): 88615868

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 835997, 1671994, 3343988, 4179985, 6687976, 8359970, 13375952, 16719940, 33439880, 66879760]

約数ペア:

[(1, 66879760), (2, 33439880), (4, 16719940), (5, 13375952), (8, 8359970), (10, 6687976), (16, 4179985), (20, 3343988), (40, 1671994), (80, 835997)]