19934380

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1229}}^1$

素因数の和:2049

約数の個数: 24

約数和(自身を含む): 41947920

約数和(自身を除く): 22013540

約数列:

[1, 2, 4, 5, 10, 20, 811, 1229, 1622, 2458, 3244, 4055, 4916, 6145, 8110, 12290, 16220, 24580, 996719, 1993438, 3986876, 4983595, 9967190, 19934380]

約数ペア:

[(1, 19934380), (2, 9967190), (4, 4983595), (5, 3986876), (10, 1993438), (20, 996719), (811, 24580), (1229, 16220), (1622, 12290), (2458, 8110), (3244, 6145), (4055, 4916)]