20000455564

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{2659}}^1\times {\mathrm{5209}}^1$

素因数の和:7910

約数の個数: 36

約数和(自身を含む): 36960886200

約数和(自身を除く): 16960430636

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 2659, 5209, 5318, 10418, 10636, 20836, 50521, 98971, 101042, 197942, 202084, 395884, 959899, 1880449, 1919798, 3760898, 3839596, 7521796, 13850731, 27701462, 55402924, 263163889, 526327778, 1052655556, 5000113891, 10000227782, 20000455564]

約数ペア:

[(1, 20000455564), (2, 10000227782), (4, 5000113891), (19, 1052655556), (38, 526327778), (76, 263163889), (361, 55402924), (722, 27701462), (1444, 13850731), (2659, 7521796), (5209, 3839596), (5318, 3760898), (10418, 1919798), (10636, 1880449), (20836, 959899), (50521, 395884), (98971, 202084), (101042, 197942)]