20962820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{33811}}^1$

素因数の和:33851

約数の個数: 24

約数和(自身を含む): 45443328

約数和(自身を除く): 24480508

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 33811, 67622, 135244, 169055, 338110, 676220, 1048141, 2096282, 4192564, 5240705, 10481410, 20962820]

約数ペア:

[(1, 20962820), (2, 10481410), (4, 5240705), (5, 4192564), (10, 2096282), (20, 1048141), (31, 676220), (62, 338110), (124, 169055), (155, 135244), (310, 67622), (620, 33811)]