78672128720

素因数分解:

$2^4\times 5^1\times {\mathrm{983401609}}^1$

素因数の和:983401622

約数の個数: 20

約数和(自身を含む): 182912699460

約数和(自身を除く): 104240570740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 983401609, 1966803218, 3933606436, 4917008045, 7867212872, 9834016090, 15734425744, 19668032180, 39336064360, 78672128720]

約数ペア:

[(1, 78672128720), (2, 39336064360), (4, 19668032180), (5, 15734425744), (8, 9834016090), (10, 7867212872), (16, 4917008045), (20, 3933606436), (40, 1966803218), (80, 983401609)]