261200

素因数分解:

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

素因数の和:671

約数の個数: 30

約数和(自身を含む): 628494

約数和(自身を除く): 367294

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 653, 1306, 2612, 3265, 5224, 6530, 10448, 13060, 16325, 26120, 32650, 52240, 65300, 130600, 261200]

約数ペア:

[(1, 261200), (2, 130600), (4, 65300), (5, 52240), (8, 32650), (10, 26120), (16, 16325), (20, 13060), (25, 10448), (40, 6530), (50, 5224), (80, 3265), (100, 2612), (200, 1306), (400, 653)]