19970800

素因数分解:

$2^4\times 5^2\times {\mathrm{49927}}^1$

素因数の和:49945

約数の個数: 30

約数和(自身を含む): 47980808

約数和(自身を除く): 28010008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 49927, 99854, 199708, 249635, 399416, 499270, 798832, 998540, 1248175, 1997080, 2496350, 3994160, 4992700, 9985400, 19970800]

約数ペア:

[(1, 19970800), (2, 9985400), (4, 4992700), (5, 3994160), (8, 2496350), (10, 1997080), (16, 1248175), (20, 998540), (25, 798832), (40, 499270), (50, 399416), (80, 249635), (100, 199708), (200, 99854), (400, 49927)]