9972100

素因数分解:

$2^2\times 5^2\times {\mathrm{99721}}^1$

素因数の和:99735

約数の個数: 18

約数和(自身を含む): 21639674

約数和(自身を除く): 11667574

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 99721, 199442, 398884, 498605, 997210, 1994420, 2493025, 4986050, 9972100]

約数ペア:

[(1, 9972100), (2, 4986050), (4, 2493025), (5, 1994420), (10, 997210), (20, 498605), (25, 398884), (50, 199442), (100, 99721)]