20171520740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{804929}}^1$

素因数の和:805124

約数の個数: 48

約数和(自身を含む): 48682166400

約数和(自身を除く): 28510645660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 179, 358, 716, 895, 1253, 1790, 2506, 3580, 5012, 6265, 12530, 25060, 804929, 1609858, 3219716, 4024645, 5634503, 8049290, 11269006, 16098580, 22538012, 28172515, 56345030, 112690060, 144082291, 288164582, 576329164, 720411455, 1008576037, 1440822910, 2017152074, 2881645820, 4034304148, 5042880185, 10085760370, 20171520740]

約数ペア:

[(1, 20171520740), (2, 10085760370), (4, 5042880185), (5, 4034304148), (7, 2881645820), (10, 2017152074), (14, 1440822910), (20, 1008576037), (28, 720411455), (35, 576329164), (70, 288164582), (140, 144082291), (179, 112690060), (358, 56345030), (716, 28172515), (895, 22538012), (1253, 16098580), (1790, 11269006), (2506, 8049290), (3580, 5634503), (5012, 4024645), (6265, 3219716), (12530, 1609858), (25060, 804929)]