391777280

素因数分解:

$2^{10}\times 5^1\times {\mathrm{76519}}^1$

素因数の和:76544

約数の個数: 44

約数和(自身を含む): 939818640

約数和(自身を除く): 548041360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 76519, 153038, 306076, 382595, 612152, 765190, 1224304, 1530380, 2448608, 3060760, 4897216, 6121520, 9794432, 12243040, 19588864, 24486080, 39177728, 48972160, 78355456, 97944320, 195888640, 391777280]

約数ペア:

[(1, 391777280), (2, 195888640), (4, 97944320), (5, 78355456), (8, 48972160), (10, 39177728), (16, 24486080), (20, 19588864), (32, 12243040), (40, 9794432), (64, 6121520), (80, 4897216), (128, 3060760), (160, 2448608), (256, 1530380), (320, 1224304), (512, 765190), (640, 612152), (1024, 382595), (1280, 306076), (2560, 153038), (5120, 76519)]