20120502647

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1\times {\mathrm{521}}^1$

素因数の和:1032

約数の個数: 48

約数和(自身を含む): 24593466240

約数和(自身を除く): 4472963593

約数列:

[1, 7, 41, 47, 49, 287, 329, 409, 521, 1927, 2009, 2303, 2863, 3647, 13489, 16769, 19223, 20041, 21361, 24487, 25529, 94423, 117383, 134561, 149527, 171409, 213089, 788143, 821681, 941927, 1003967, 1046689, 1199863, 1491623, 5517001, 7027769, 8736649, 10015183, 10441361, 38619007, 49194383, 61156543, 70106281, 410622503, 428095801, 490743967, 2874357521, 20120502647]

約数ペア:

[(1, 20120502647), (7, 2874357521), (41, 490743967), (47, 428095801), (49, 410622503), (287, 70106281), (329, 61156543), (409, 49194383), (521, 38619007), (1927, 10441361), (2009, 10015183), (2303, 8736649), (2863, 7027769), (3647, 5517001), (13489, 1491623), (16769, 1199863), (19223, 1046689), (20041, 1003967), (21361, 941927), (24487, 821681), (25529, 788143), (94423, 213089), (117383, 171409), (134561, 149527)]