81688684

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37889}}^1$

素因数の和:37918

約数の個数: 36

約数和(自身を含む): 181417320

約数和(自身を除く): 99728636

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 37889, 75778, 151556, 265223, 416779, 530446, 833558, 1060892, 1667116, 1856561, 2917453, 3713122, 5834906, 7426244, 11669812, 20422171, 40844342, 81688684]

約数ペア:

[(1, 81688684), (2, 40844342), (4, 20422171), (7, 11669812), (11, 7426244), (14, 5834906), (22, 3713122), (28, 2917453), (44, 1856561), (49, 1667116), (77, 1060892), (98, 833558), (154, 530446), (196, 416779), (308, 265223), (539, 151556), (1078, 75778), (2156, 37889)]