81431372

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{1279}}^1\times {\mathrm{1447}}^1$

素因数の和:2741

約数の個数: 24

約数和(自身を含む): 155688960

約数和(自身を除く): 74257588

約数列:

[1, 2, 4, 11, 22, 44, 1279, 1447, 2558, 2894, 5116, 5788, 14069, 15917, 28138, 31834, 56276, 63668, 1850713, 3701426, 7402852, 20357843, 40715686, 81431372]

約数ペア:

[(1, 81431372), (2, 40715686), (4, 20357843), (11, 7402852), (22, 3701426), (44, 1850713), (1279, 63668), (1447, 56276), (2558, 31834), (2894, 28138), (5116, 15917), (5788, 14069)]