2008264520

素因数分解:

$2^3\times 5^1\times {\mathrm{821}}^1\times {\mathrm{61153}}^1$

素因数の和:61985

約数の個数: 32

約数和(自身を含む): 4524172920

約数和(自身を除く): 2515908400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 821, 1642, 3284, 4105, 6568, 8210, 16420, 32840, 61153, 122306, 244612, 305765, 489224, 611530, 1223060, 2446120, 50206613, 100413226, 200826452, 251033065, 401652904, 502066130, 1004132260, 2008264520]

約数ペア:

[(1, 2008264520), (2, 1004132260), (4, 502066130), (5, 401652904), (8, 251033065), (10, 200826452), (20, 100413226), (40, 50206613), (821, 2446120), (1642, 1223060), (3284, 611530), (4105, 489224), (6568, 305765), (8210, 244612), (16420, 122306), (32840, 61153)]