20890917804

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{443}}^1\times {\mathrm{135511}}^1$

素因数の和:135990

約数の個数: 48

約数和(自身を含む): 50540555520

約数和(自身を除く): 29649637716

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 87, 116, 174, 348, 443, 886, 1329, 1772, 2658, 5316, 12847, 25694, 38541, 51388, 77082, 135511, 154164, 271022, 406533, 542044, 813066, 1626132, 3929819, 7859638, 11789457, 15719276, 23578914, 47157828, 60031373, 120062746, 180094119, 240125492, 360188238, 720376476, 1740909817, 3481819634, 5222729451, 6963639268, 10445458902, 20890917804]

約数ペア:

[(1, 20890917804), (2, 10445458902), (3, 6963639268), (4, 5222729451), (6, 3481819634), (12, 1740909817), (29, 720376476), (58, 360188238), (87, 240125492), (116, 180094119), (174, 120062746), (348, 60031373), (443, 47157828), (886, 23578914), (1329, 15719276), (1772, 11789457), (2658, 7859638), (5316, 3929819), (12847, 1626132), (25694, 813066), (38541, 542044), (51388, 406533), (77082, 271022), (135511, 154164)]