40182820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{64811}}^1$

素因数の和:64851

約数の個数: 24

約数和(自身を含む): 87107328

約数和(自身を除く): 46924508

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 64811, 129622, 259244, 324055, 648110, 1296220, 2009141, 4018282, 8036564, 10045705, 20091410, 40182820]

約数ペア:

[(1, 40182820), (2, 20091410), (4, 10045705), (5, 8036564), (10, 4018282), (20, 2009141), (31, 1296220), (62, 648110), (124, 324055), (155, 259244), (310, 129622), (620, 64811)]