164637765

素因数分解:

$3^4\times 5^1\times {\mathrm{406513}}^1$

素因数の和:406530

約数の個数: 20

約数和(自身を含む): 295129164

約数和(自身を除く): 130491399

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 406513, 1219539, 2032565, 3658617, 6097695, 10975851, 18293085, 32927553, 54879255, 164637765]

約数ペア:

[(1, 164637765), (3, 54879255), (5, 32927553), (9, 18293085), (15, 10975851), (27, 6097695), (45, 3658617), (81, 2032565), (135, 1219539), (405, 406513)]