1278339968

素因数分解:

$2^7\times {\mathrm{9987031}}^1$

素因数の和:9987045

約数の個数: 16

約数和(自身を含む): 2546693160

約数和(自身を除く): 1268353192

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 9987031, 19974062, 39948124, 79896248, 159792496, 319584992, 639169984, 1278339968]

約数ペア:

[(1, 1278339968), (2, 639169984), (4, 319584992), (8, 159792496), (16, 79896248), (32, 39948124), (64, 19974062), (128, 9987031)]