20520609712

素因数分解:

$2^4\times {\mathrm{31}}^2\times {\mathrm{71}}^1\times {\mathrm{18797}}^1$

素因数の和:18938

約数の個数: 60

約数和(自身を含む): 41663436048

約数和(自身を除く): 21142826336

約数列:

[1, 2, 4, 8, 16, 31, 62, 71, 124, 142, 248, 284, 496, 568, 961, 1136, 1922, 2201, 3844, 4402, 7688, 8804, 15376, 17608, 18797, 35216, 37594, 68231, 75188, 136462, 150376, 272924, 300752, 545848, 582707, 1091696, 1165414, 1334587, 2330828, 2669174, 4661656, 5338348, 9323312, 10676696, 18063917, 21353392, 36127834, 41372197, 72255668, 82744394, 144511336, 165488788, 289022672, 330977576, 661955152, 1282538107, 2565076214, 5130152428, 10260304856, 20520609712]

約数ペア:

[(1, 20520609712), (2, 10260304856), (4, 5130152428), (8, 2565076214), (16, 1282538107), (31, 661955152), (62, 330977576), (71, 289022672), (124, 165488788), (142, 144511336), (248, 82744394), (284, 72255668), (496, 41372197), (568, 36127834), (961, 21353392), (1136, 18063917), (1922, 10676696), (2201, 9323312), (3844, 5338348), (4402, 4661656), (7688, 2669174), (8804, 2330828), (15376, 1334587), (17608, 1165414), (18797, 1091696), (35216, 582707), (37594, 545848), (68231, 300752), (75188, 272924), (136462, 150376)]