199921705

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{34499}}^1$

素因数の和:34584

約数の個数: 16

約数和(自身を含む): 256680000

約数和(自身を除く): 56758295

約数列:

[1, 5, 19, 61, 95, 305, 1159, 5795, 34499, 172495, 655481, 2104439, 3277405, 10522195, 39984341, 199921705]

約数ペア:

[(1, 199921705), (5, 39984341), (19, 10522195), (61, 3277405), (95, 2104439), (305, 655481), (1159, 172495), (5795, 34499)]