78309040

素因数分解:

$2^4\times 5^1\times {\mathrm{978863}}^1$

素因数の和:978876

約数の個数: 20

約数和(自身を含む): 182068704

約数和(自身を除く): 103759664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 978863, 1957726, 3915452, 4894315, 7830904, 9788630, 15661808, 19577260, 39154520, 78309040]

約数ペア:

[(1, 78309040), (2, 39154520), (4, 19577260), (5, 15661808), (8, 9788630), (10, 7830904), (16, 4894315), (20, 3915452), (40, 1957726), (80, 978863)]