66989840

素因数分解:

$2^4\times 5^1\times {\mathrm{837373}}^1$

素因数の和:837386

約数の個数: 20

約数和(自身を含む): 155751564

約数和(自身を除く): 88761724

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 837373, 1674746, 3349492, 4186865, 6698984, 8373730, 13397968, 16747460, 33494920, 66989840]

約数ペア:

[(1, 66989840), (2, 33494920), (4, 16747460), (5, 13397968), (8, 8373730), (10, 6698984), (16, 4186865), (20, 3349492), (40, 1674746), (80, 837373)]