1645950995

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{443}}^1\times {\mathrm{4397}}^1$

素因数の和:4871

約数の個数: 24

約数和(自身を含む): 2144077776

約数和(自身を除く): 498126781

約数列:

[1, 5, 13, 65, 169, 443, 845, 2215, 4397, 5759, 21985, 28795, 57161, 74867, 285805, 374335, 743093, 1947871, 3715465, 9739355, 25322323, 126611615, 329190199, 1645950995]

約数ペア:

[(1, 1645950995), (5, 329190199), (13, 126611615), (65, 25322323), (169, 9739355), (443, 3715465), (845, 1947871), (2215, 743093), (4397, 374335), (5759, 285805), (21985, 74867), (28795, 57161)]