79808720

素因数分解:

$2^4\times 5^1\times {\mathrm{997609}}^1$

素因数の和:997622

約数の個数: 20

約数和(自身を含む): 185555460

約数和(自身を除く): 105746740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 997609, 1995218, 3990436, 4988045, 7980872, 9976090, 15961744, 19952180, 39904360, 79808720]

約数ペア:

[(1, 79808720), (2, 39904360), (4, 19952180), (5, 15961744), (8, 9976090), (10, 7980872), (16, 4988045), (20, 3990436), (40, 1995218), (80, 997609)]