28292290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{16741}}^1$

素因数の和:16774

約数の個数: 24

約数和(自身を含む): 55148148

約数和(自身を除く): 26855858

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 16741, 33482, 83705, 167410, 217633, 435266, 1088165, 2176330, 2829229, 5658458, 14146145, 28292290]

約数ペア:

[(1, 28292290), (2, 14146145), (5, 5658458), (10, 2829229), (13, 2176330), (26, 1088165), (65, 435266), (130, 217633), (169, 167410), (338, 83705), (845, 33482), (1690, 16741)]