80596640

素因数分解:

$2^5\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2557}}^1$

素因数の和:2769

約数の個数: 48

約数和(自身を含む): 191450952

約数和(自身を除く): 110854312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 197, 394, 788, 985, 1576, 1970, 2557, 3152, 3940, 5114, 6304, 7880, 10228, 12785, 15760, 20456, 25570, 31520, 40912, 51140, 81824, 102280, 204560, 409120, 503729, 1007458, 2014916, 2518645, 4029832, 5037290, 8059664, 10074580, 16119328, 20149160, 40298320, 80596640]

約数ペア:

[(1, 80596640), (2, 40298320), (4, 20149160), (5, 16119328), (8, 10074580), (10, 8059664), (16, 5037290), (20, 4029832), (32, 2518645), (40, 2014916), (80, 1007458), (160, 503729), (197, 409120), (394, 204560), (788, 102280), (985, 81824), (1576, 51140), (1970, 40912), (2557, 31520), (3152, 25570), (3940, 20456), (5114, 15760), (6304, 12785), (7880, 10228)]