209893405

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{907}}^1\times {\mathrm{1493}}^1$

素因数の和:2436

約数の個数: 16

約数和(自身を含む): 260457984

約数和(自身を除く): 50564579

約数列:

[1, 5, 31, 155, 907, 1493, 4535, 7465, 28117, 46283, 140585, 231415, 1354151, 6770755, 41978681, 209893405]

約数ペア:

[(1, 209893405), (5, 41978681), (31, 6770755), (155, 1354151), (907, 231415), (1493, 140585), (4535, 46283), (7465, 28117)]