218342590

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{157081}}^1$

素因数の和:157227

約数の個数: 16

約数和(自身を含む): 395846640

約数和(自身を除く): 177504050

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 157081, 314162, 785405, 1570810, 21834259, 43668518, 109171295, 218342590]

約数ペア:

[(1, 218342590), (2, 109171295), (5, 43668518), (10, 21834259), (139, 1570810), (278, 785405), (695, 314162), (1390, 157081)]