839236480

素因数分解:

$2^7\times 5^1\times {\mathrm{1311307}}^1$

素因数の和:1311326

約数の個数: 32

約数和(自身を含む): 2006301240

約数和(自身を除く): 1167064760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1311307, 2622614, 5245228, 6556535, 10490456, 13113070, 20980912, 26226140, 41961824, 52452280, 83923648, 104904560, 167847296, 209809120, 419618240, 839236480]

約数ペア:

[(1, 839236480), (2, 419618240), (4, 209809120), (5, 167847296), (8, 104904560), (10, 83923648), (16, 52452280), (20, 41961824), (32, 26226140), (40, 20980912), (64, 13113070), (80, 10490456), (128, 6556535), (160, 5245228), (320, 2622614), (640, 1311307)]