161505

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:145

約数の個数: 24

約数和(自身を含む): 290472

約数和(自身を除く): 128967

約数列:

[1, 3, 5, 9, 15, 37, 45, 97, 111, 185, 291, 333, 485, 555, 873, 1455, 1665, 3589, 4365, 10767, 17945, 32301, 53835, 161505]

約数ペア:

[(1, 161505), (3, 53835), (5, 32301), (9, 17945), (15, 10767), (37, 4365), (45, 3589), (97, 1665), (111, 1455), (185, 873), (291, 555), (333, 485)]