257821312

素因数分解:

$2^7\times 7^1\times {\mathrm{287747}}^1$

素因数の和:287768

約数の個数: 32

約数和(自身を含む): 587005920

約数和(自身を除く): 329184608

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 448, 896, 287747, 575494, 1150988, 2014229, 2301976, 4028458, 4603952, 8056916, 9207904, 16113832, 18415808, 32227664, 36831616, 64455328, 128910656, 257821312]

約数ペア:

[(1, 257821312), (2, 128910656), (4, 64455328), (7, 36831616), (8, 32227664), (14, 18415808), (16, 16113832), (28, 9207904), (32, 8056916), (56, 4603952), (64, 4028458), (112, 2301976), (128, 2014229), (224, 1150988), (448, 575494), (896, 287747)]