20205328

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8831}}^1$

素因数の和:8863

約数の個数: 40

約数和(自身を含む): 45997056

約数和(自身を除く): 25791728

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 8831, 17662, 35324, 70648, 97141, 114803, 141296, 194282, 229606, 388564, 459212, 777128, 918424, 1262833, 1554256, 1836848, 2525666, 5051332, 10102664, 20205328]

約数ペア:

[(1, 20205328), (2, 10102664), (4, 5051332), (8, 2525666), (11, 1836848), (13, 1554256), (16, 1262833), (22, 918424), (26, 777128), (44, 459212), (52, 388564), (88, 229606), (104, 194282), (143, 141296), (176, 114803), (208, 97141), (286, 70648), (572, 35324), (1144, 17662), (2288, 8831)]