81746566

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1789}}^1$

素因数の和:1900

約数の個数: 32

約数和(自身を含む): 140221440

約数和(自身を除く): 58474874

約数列:

[1, 2, 11, 22, 31, 62, 67, 134, 341, 682, 737, 1474, 1789, 2077, 3578, 4154, 19679, 22847, 39358, 45694, 55459, 110918, 119863, 239726, 610049, 1220098, 1318493, 2636986, 3715753, 7431506, 40873283, 81746566]

約数ペア:

[(1, 81746566), (2, 40873283), (11, 7431506), (22, 3715753), (31, 2636986), (62, 1318493), (67, 1220098), (134, 610049), (341, 239726), (682, 119863), (737, 110918), (1474, 55459), (1789, 45694), (2077, 39358), (3578, 22847), (4154, 19679)]