2157788165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{75619}}^1$

素因数の和:76076

約数の個数: 16

約数和(自身を含む): 2794915200

約数和(自身を除く): 637127035

約数列:

[1, 5, 13, 65, 439, 2195, 5707, 28535, 75619, 378095, 983047, 4915235, 33196741, 165983705, 431557633, 2157788165]

約数ペア:

[(1, 2157788165), (5, 431557633), (13, 165983705), (65, 33196741), (439, 4915235), (2195, 983047), (5707, 378095), (28535, 75619)]