1306000

素因数分解:

$2^4\times 5^3\times {\mathrm{653}}^1$

素因数の和:676

約数の個数: 40

約数和(自身を含む): 3162744

約数和(自身を除く): 1856744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 653, 1000, 1306, 2000, 2612, 3265, 5224, 6530, 10448, 13060, 16325, 26120, 32650, 52240, 65300, 81625, 130600, 163250, 261200, 326500, 653000, 1306000]

約数ペア:

[(1, 1306000), (2, 653000), (4, 326500), (5, 261200), (8, 163250), (10, 130600), (16, 81625), (20, 65300), (25, 52240), (40, 32650), (50, 26120), (80, 16325), (100, 13060), (125, 10448), (200, 6530), (250, 5224), (400, 3265), (500, 2612), (653, 2000), (1000, 1306)]