1994000

素因数分解:

$2^4\times 5^3\times {\mathrm{997}}^1$

素因数の和:1020

約数の個数: 40

約数和(自身を含む): 4826328

約数和(自身を除く): 2832328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 997, 1000, 1994, 2000, 3988, 4985, 7976, 9970, 15952, 19940, 24925, 39880, 49850, 79760, 99700, 124625, 199400, 249250, 398800, 498500, 997000, 1994000]

約数ペア:

[(1, 1994000), (2, 997000), (4, 498500), (5, 398800), (8, 249250), (10, 199400), (16, 124625), (20, 99700), (25, 79760), (40, 49850), (50, 39880), (80, 24925), (100, 19940), (125, 15952), (200, 9970), (250, 7976), (400, 4985), (500, 3988), (997, 2000), (1000, 1994)]