12498800

素因数分解:

$2^4\times 5^2\times {\mathrm{31247}}^1$

素因数の和:31265

約数の個数: 30

約数和(自身を含む): 30029328

約数和(自身を除く): 17530528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 31247, 62494, 124988, 156235, 249976, 312470, 499952, 624940, 781175, 1249880, 1562350, 2499760, 3124700, 6249400, 12498800]

約数ペア:

[(1, 12498800), (2, 6249400), (4, 3124700), (5, 2499760), (8, 1562350), (10, 1249880), (16, 781175), (20, 624940), (25, 499952), (40, 312470), (50, 249976), (80, 156235), (100, 124988), (200, 62494), (400, 31247)]