19640435

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{643}}^1$

素因数の和:838

約数の個数: 16

約数和(自身を含む): 24343200

約数和(自身を除く): 4702765

約数列:

[1, 5, 41, 149, 205, 643, 745, 3215, 6109, 26363, 30545, 95807, 131815, 479035, 3928087, 19640435]

約数ペア:

[(1, 19640435), (5, 3928087), (41, 479035), (149, 131815), (205, 95807), (643, 30545), (745, 26363), (3215, 6109)]