857709215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1\times {\mathrm{1789}}^1$

素因数の和:2207

約数の個数: 32

約数和(自身を含む): 1175385600

約数和(自身を除く): 317676385

約数列:

[1, 5, 11, 23, 55, 115, 253, 379, 1265, 1789, 1895, 4169, 8717, 8945, 19679, 20845, 41147, 43585, 95887, 98395, 205735, 452617, 479435, 678031, 2263085, 3390155, 7458341, 15594713, 37291705, 77973565, 171541843, 857709215]

約数ペア:

[(1, 857709215), (5, 171541843), (11, 77973565), (23, 37291705), (55, 15594713), (115, 7458341), (253, 3390155), (379, 2263085), (1265, 678031), (1789, 479435), (1895, 452617), (4169, 205735), (8717, 98395), (8945, 95887), (19679, 43585), (20845, 41147)]