81223856

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31531}}^1$

素因数の和:31569

約数の個数: 40

約数和(自身を含む): 187678464

約数和(自身を除く): 106454608

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 31531, 63062, 126124, 220717, 252248, 441434, 504496, 725213, 882868, 1450426, 1765736, 2900852, 3531472, 5076491, 5801704, 10152982, 11603408, 20305964, 40611928, 81223856]

約数ペア:

[(1, 81223856), (2, 40611928), (4, 20305964), (7, 11603408), (8, 10152982), (14, 5801704), (16, 5076491), (23, 3531472), (28, 2900852), (46, 1765736), (56, 1450426), (92, 882868), (112, 725213), (161, 504496), (184, 441434), (322, 252248), (368, 220717), (644, 126124), (1288, 63062), (2576, 31531)]