80680400

素因数分解:

$2^4\times 5^2\times {\mathrm{201701}}^1$

素因数の和:201719

約数の個数: 30

約数和(自身を含む): 193835622

約数和(自身を除く): 113155222

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 201701, 403402, 806804, 1008505, 1613608, 2017010, 3227216, 4034020, 5042525, 8068040, 10085050, 16136080, 20170100, 40340200, 80680400]

約数ペア:

[(1, 80680400), (2, 40340200), (4, 20170100), (5, 16136080), (8, 10085050), (10, 8068040), (16, 5042525), (20, 4034020), (25, 3227216), (40, 2017010), (50, 1613608), (80, 1008505), (100, 806804), (200, 403402), (400, 201701)]