200052500

素因数分解:

$2^2\times 5^4\times {\mathrm{80021}}^1$

素因数の和:80045

約数の個数: 30

約数和(自身を含む): 437480274

約数和(自身を除く): 237427774

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 80021, 160042, 320084, 400105, 800210, 1600420, 2000525, 4001050, 8002100, 10002625, 20005250, 40010500, 50013125, 100026250, 200052500]

約数ペア:

[(1, 200052500), (2, 100026250), (4, 50013125), (5, 40010500), (10, 20005250), (20, 10002625), (25, 8002100), (50, 4001050), (100, 2000525), (125, 1600420), (250, 800210), (500, 400105), (625, 320084), (1250, 160042), (2500, 80021)]