20804817605

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{63671}}^1$

素因数の和:64157

約数の個数: 32

約数和(自身を含む): 29395070208

約数和(自身を除く): 8590252603

約数列:

[1, 5, 11, 13, 55, 65, 143, 457, 715, 2285, 5027, 5941, 25135, 29705, 63671, 65351, 318355, 326755, 700381, 827723, 3501905, 4138615, 9104953, 29097647, 45524765, 145488235, 320074117, 378269411, 1600370585, 1891347055, 4160963521, 20804817605]

約数ペア:

[(1, 20804817605), (5, 4160963521), (11, 1891347055), (13, 1600370585), (55, 378269411), (65, 320074117), (143, 145488235), (457, 45524765), (715, 29097647), (2285, 9104953), (5027, 4138615), (5941, 3501905), (25135, 827723), (29705, 700381), (63671, 326755), (65351, 318355)]