161525

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:101

約数の個数: 24

約数和(自身を含む): 249984

約数和(自身を除く): 88459

約数列:

[1, 5, 7, 13, 25, 35, 65, 71, 91, 175, 325, 355, 455, 497, 923, 1775, 2275, 2485, 4615, 6461, 12425, 23075, 32305, 161525]

約数ペア:

[(1, 161525), (5, 32305), (7, 23075), (13, 12425), (25, 6461), (35, 4615), (65, 2485), (71, 2275), (91, 1775), (175, 923), (325, 497), (355, 455)]