201680240

素因数分解:

$2^4\times 5^1\times {\mathrm{2521003}}^1$

素因数の和:2521016

約数の個数: 20

約数和(自身を含む): 468906744

約数和(自身を除く): 267226504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2521003, 5042006, 10084012, 12605015, 20168024, 25210030, 40336048, 50420060, 100840120, 201680240]

約数ペア:

[(1, 201680240), (2, 100840120), (4, 50420060), (5, 40336048), (8, 25210030), (10, 20168024), (16, 12605015), (20, 10084012), (40, 5042006), (80, 2521003)]