289662016

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20857}}^1$

素因数の和:20907

約数の個数: 56

約数和(自身を含む): 678135296

約数和(自身を除く): 388473280

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 217, 224, 248, 434, 448, 496, 868, 992, 1736, 1984, 3472, 6944, 13888, 20857, 41714, 83428, 145999, 166856, 291998, 333712, 583996, 646567, 667424, 1167992, 1293134, 1334848, 2335984, 2586268, 4525969, 4671968, 5172536, 9051938, 9343936, 10345072, 18103876, 20690144, 36207752, 41380288, 72415504, 144831008, 289662016]

約数ペア:

[(1, 289662016), (2, 144831008), (4, 72415504), (7, 41380288), (8, 36207752), (14, 20690144), (16, 18103876), (28, 10345072), (31, 9343936), (32, 9051938), (56, 5172536), (62, 4671968), (64, 4525969), (112, 2586268), (124, 2335984), (217, 1334848), (224, 1293134), (248, 1167992), (434, 667424), (448, 646567), (496, 583996), (868, 333712), (992, 291998), (1736, 166856), (1984, 145999), (3472, 83428), (6944, 41714), (13888, 20857)]