163944320

素因数分解:

$2^7\times 5^1\times {\mathrm{256163}}^1$

素因数の和:256182

約数の個数: 32

約数和(自身を含む): 391930920

約数和(自身を除く): 227986600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 256163, 512326, 1024652, 1280815, 2049304, 2561630, 4098608, 5123260, 8197216, 10246520, 16394432, 20493040, 32788864, 40986080, 81972160, 163944320]

約数ペア:

[(1, 163944320), (2, 81972160), (4, 40986080), (5, 32788864), (8, 20493040), (10, 16394432), (16, 10246520), (20, 8197216), (32, 5123260), (40, 4098608), (64, 2561630), (80, 2049304), (128, 1280815), (160, 1024652), (320, 512326), (640, 256163)]