161752545

素因数分解:

$3^4\times 5^1\times {\mathrm{399389}}^1$

素因数の和:399406

約数の個数: 20

約数和(自身を含む): 289957140

約数和(自身を除く): 128204595

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 399389, 1198167, 1996945, 3594501, 5990835, 10783503, 17972505, 32350509, 53917515, 161752545]

約数ペア:

[(1, 161752545), (3, 53917515), (5, 32350509), (9, 17972505), (15, 10783503), (27, 5990835), (45, 3594501), (81, 1996945), (135, 1198167), (405, 399389)]