20020156

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{877}}^1$

素因数の和:1333

約数の個数: 24

約数和(自身を含む): 37859360

約数和(自身を除く): 17839204

約数列:

[1, 2, 4, 13, 26, 52, 439, 877, 878, 1754, 1756, 3508, 5707, 11401, 11414, 22802, 22828, 45604, 385003, 770006, 1540012, 5005039, 10010078, 20020156]

約数ペア:

[(1, 20020156), (2, 10010078), (4, 5005039), (13, 1540012), (26, 770006), (52, 385003), (439, 45604), (877, 22828), (878, 22802), (1754, 11414), (1756, 11401), (3508, 5707)]