20088536

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{461}}^1$

素因数の和:899

約数の個数: 32

約数和(自身を含む): 40748400

約数和(自身を除く): 20659864

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 419, 461, 838, 922, 1676, 1844, 3352, 3688, 5447, 5993, 10894, 11986, 21788, 23972, 43576, 47944, 193159, 386318, 772636, 1545272, 2511067, 5022134, 10044268, 20088536]

約数ペア:

[(1, 20088536), (2, 10044268), (4, 5022134), (8, 2511067), (13, 1545272), (26, 772636), (52, 386318), (104, 193159), (419, 47944), (461, 43576), (838, 23972), (922, 21788), (1676, 11986), (1844, 10894), (3352, 5993), (3688, 5447)]