256787384

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{147919}}^1$

素因数の和:147963

約数の個数: 32

約数和(自身を含む): 568012800

約数和(自身を除く): 311225416

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 147919, 295838, 591676, 1035433, 1183352, 2070866, 4141732, 4585489, 8283464, 9170978, 18341956, 32098423, 36683912, 64196846, 128393692, 256787384]

約数ペア:

[(1, 256787384), (2, 128393692), (4, 64196846), (7, 36683912), (8, 32098423), (14, 18341956), (28, 9170978), (31, 8283464), (56, 4585489), (62, 4141732), (124, 2070866), (217, 1183352), (248, 1035433), (434, 591676), (868, 295838), (1736, 147919)]