81301700

素因数分解:

$2^2\times 5^2\times {\mathrm{813017}}^1$

素因数の和:813031

約数の個数: 18

約数和(自身を含む): 176424906

約数和(自身を除く): 95123206

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 813017, 1626034, 3252068, 4065085, 8130170, 16260340, 20325425, 40650850, 81301700]

約数ペア:

[(1, 81301700), (2, 40650850), (4, 20325425), (5, 16260340), (10, 8130170), (20, 4065085), (25, 3252068), (50, 1626034), (100, 813017)]