67890100

素因数分解:

$2^2\times 5^2\times {\mathrm{678901}}^1$

素因数の和:678915

約数の個数: 18

約数和(自身を含む): 147321734

約数和(自身を除く): 79431634

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 678901, 1357802, 2715604, 3394505, 6789010, 13578020, 16972525, 33945050, 67890100]

約数ペア:

[(1, 67890100), (2, 33945050), (4, 16972525), (5, 13578020), (10, 6789010), (20, 3394505), (25, 2715604), (50, 1357802), (100, 678901)]