20731692016

素因数分解:

$2^4\times 7^1\times {\mathrm{719}}^1\times {\mathrm{257447}}^1$

素因数の和:258181

約数の個数: 40

約数和(自身を含む): 45969914880

約数和(自身を除く): 25238222864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 719, 1438, 2876, 5033, 5752, 10066, 11504, 20132, 40264, 80528, 257447, 514894, 1029788, 1802129, 2059576, 3604258, 4119152, 7208516, 14417032, 28834064, 185104393, 370208786, 740417572, 1295730751, 1480835144, 2591461502, 2961670288, 5182923004, 10365846008, 20731692016]

約数ペア:

[(1, 20731692016), (2, 10365846008), (4, 5182923004), (7, 2961670288), (8, 2591461502), (14, 1480835144), (16, 1295730751), (28, 740417572), (56, 370208786), (112, 185104393), (719, 28834064), (1438, 14417032), (2876, 7208516), (5033, 4119152), (5752, 3604258), (10066, 2059576), (11504, 1802129), (20132, 1029788), (40264, 514894), (80528, 257447)]