19745395

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1579}}^1$

素因数の和:1686

約数の個数: 16

約数和(自身を含む): 24685920

約数和(自身を除く): 4940525

約数列:

[1, 5, 41, 61, 205, 305, 1579, 2501, 7895, 12505, 64739, 96319, 323695, 481595, 3949079, 19745395]

約数ペア:

[(1, 19745395), (5, 3949079), (41, 481595), (61, 323695), (205, 96319), (305, 64739), (1579, 12505), (2501, 7895)]