1908005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{307}}^1$

素因数の和:436

約数の個数: 16

約数和(自身を含む): 2528064

約数和(自身を除く): 620059

約数列:

[1, 5, 11, 55, 113, 307, 565, 1243, 1535, 3377, 6215, 16885, 34691, 173455, 381601, 1908005]

約数ペア:

[(1, 1908005), (5, 381601), (11, 173455), (55, 34691), (113, 16885), (307, 6215), (565, 3377), (1243, 1535)]