681565555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{4943}}^1$

素因数の和:5091

約数の個数: 32

約数和(自身を含む): 939755520

約数和(自身を除く): 258189965

約数列:

[1, 5, 11, 23, 55, 109, 115, 253, 545, 1199, 1265, 2507, 4943, 5995, 12535, 24715, 27577, 54373, 113689, 137885, 271865, 538787, 568445, 1250579, 2693935, 5926657, 6252895, 12392101, 29633285, 61960505, 136313111, 681565555]

約数ペア:

[(1, 681565555), (5, 136313111), (11, 61960505), (23, 29633285), (55, 12392101), (109, 6252895), (115, 5926657), (253, 2693935), (545, 1250579), (1199, 568445), (1265, 538787), (2507, 271865), (4943, 137885), (5995, 113689), (12535, 54373), (24715, 27577)]