19862000

素因数分解:

$2^4\times 5^3\times {\mathrm{9931}}^1$

素因数の和:9954

約数の個数: 40

約数和(自身を含む): 48031152

約数和(自身を除く): 28169152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 9931, 19862, 39724, 49655, 79448, 99310, 158896, 198620, 248275, 397240, 496550, 794480, 993100, 1241375, 1986200, 2482750, 3972400, 4965500, 9931000, 19862000]

約数ペア:

[(1, 19862000), (2, 9931000), (4, 4965500), (5, 3972400), (8, 2482750), (10, 1986200), (16, 1241375), (20, 993100), (25, 794480), (40, 496550), (50, 397240), (80, 248275), (100, 198620), (125, 158896), (200, 99310), (250, 79448), (400, 49655), (500, 39724), (1000, 19862), (2000, 9931)]