20797645040

素因数分解:

$2^4\times 5^1\times {\mathrm{443}}^1\times {\mathrm{586841}}^1$

素因数の和:587297

約数の個数: 40

約数和(自身を含む): 48463759728

約数和(自身を除く): 27666114688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 443, 886, 1772, 2215, 3544, 4430, 7088, 8860, 17720, 35440, 586841, 1173682, 2347364, 2934205, 4694728, 5868410, 9389456, 11736820, 23473640, 46947280, 259970563, 519941126, 1039882252, 1299852815, 2079764504, 2599705630, 4159529008, 5199411260, 10398822520, 20797645040]

約数ペア:

[(1, 20797645040), (2, 10398822520), (4, 5199411260), (5, 4159529008), (8, 2599705630), (10, 2079764504), (16, 1299852815), (20, 1039882252), (40, 519941126), (80, 259970563), (443, 46947280), (886, 23473640), (1772, 11736820), (2215, 9389456), (3544, 5868410), (4430, 4694728), (7088, 2934205), (8860, 2347364), (17720, 1173682), (35440, 586841)]