19982690495

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{733}}^1\times {\mathrm{1873}}^1$

素因数の和:2723

約数の個数: 32

約数和(自身を含む): 24957362304

約数和(自身を除く): 4974671809

約数列:

[1, 5, 41, 71, 205, 355, 733, 1873, 2911, 3665, 9365, 14555, 30053, 52043, 76793, 132983, 150265, 260215, 383965, 664915, 1372909, 2133763, 5452303, 6864545, 10668815, 27261515, 56289269, 97476539, 281446345, 487382695, 3996538099, 19982690495]

約数ペア:

[(1, 19982690495), (5, 3996538099), (41, 487382695), (71, 281446345), (205, 97476539), (355, 56289269), (733, 27261515), (1873, 10668815), (2911, 6864545), (3665, 5452303), (9365, 2133763), (14555, 1372909), (30053, 664915), (52043, 383965), (76793, 260215), (132983, 150265)]