168991505

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1\times {\mathrm{1867}}^1$

素因数の和:2336

約数の個数: 16

約数和(自身を含む): 208110144

約数和(自身を除く): 39118639

約数列:

[1, 5, 43, 215, 421, 1867, 2105, 9335, 18103, 80281, 90515, 401405, 786007, 3930035, 33798301, 168991505]

約数ペア:

[(1, 168991505), (5, 33798301), (43, 3930035), (215, 786007), (421, 401405), (1867, 90515), (2105, 80281), (9335, 18103)]