668847335

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{3917}}^1$

素因数の和:4043

約数の個数: 32

約数和(自身を含む): 900450432

約数和(自身を除く): 231603097

約数列:

[1, 5, 13, 37, 65, 71, 185, 355, 481, 923, 2405, 2627, 3917, 4615, 13135, 19585, 34151, 50921, 144929, 170755, 254605, 278107, 724645, 1390535, 1884077, 3615391, 9420385, 10289959, 18076955, 51449795, 133769467, 668847335]

約数ペア:

[(1, 668847335), (5, 133769467), (13, 51449795), (37, 18076955), (65, 10289959), (71, 9420385), (185, 3615391), (355, 1884077), (481, 1390535), (923, 724645), (2405, 278107), (2627, 254605), (3917, 170755), (4615, 144929), (13135, 50921), (19585, 34151)]