81971692

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{257}}^1\times {\mathrm{659}}^1$

素因数の和:942

約数の個数: 36

約数和(自身を含む): 158530680

約数和(自身を除く): 76558988

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 257, 484, 514, 659, 1028, 1318, 2636, 2827, 5654, 7249, 11308, 14498, 28996, 31097, 62194, 79739, 124388, 159478, 169363, 318956, 338726, 677452, 1862993, 3725986, 7451972, 20492923, 40985846, 81971692]

約数ペア:

[(1, 81971692), (2, 40985846), (4, 20492923), (11, 7451972), (22, 3725986), (44, 1862993), (121, 677452), (242, 338726), (257, 318956), (484, 169363), (514, 159478), (659, 124388), (1028, 79739), (1318, 62194), (2636, 31097), (2827, 28996), (5654, 14498), (7249, 11308)]