164677825

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{38977}}^1$

素因数の和:39013

約数の個数: 18

約数和(自身を含む): 221122194

約数和(自身を除く): 56444369

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 38977, 194885, 506701, 974425, 2533505, 6587113, 12667525, 32935565, 164677825]

約数ペア:

[(1, 164677825), (5, 32935565), (13, 12667525), (25, 6587113), (65, 2533505), (169, 974425), (325, 506701), (845, 194885), (4225, 38977)]