81756532

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3863}}^1$

素因数の和:3928

約数の個数: 48

約数和(自身を含む): 172674432

約数和(自身を除く): 90917900

約数列:

[1, 2, 4, 11, 13, 22, 26, 37, 44, 52, 74, 143, 148, 286, 407, 481, 572, 814, 962, 1628, 1924, 3863, 5291, 7726, 10582, 15452, 21164, 42493, 50219, 84986, 100438, 142931, 169972, 200876, 285862, 552409, 571724, 1104818, 1572241, 1858103, 2209636, 3144482, 3716206, 6288964, 7432412, 20439133, 40878266, 81756532]

約数ペア:

[(1, 81756532), (2, 40878266), (4, 20439133), (11, 7432412), (13, 6288964), (22, 3716206), (26, 3144482), (37, 2209636), (44, 1858103), (52, 1572241), (74, 1104818), (143, 571724), (148, 552409), (286, 285862), (407, 200876), (481, 169972), (572, 142931), (814, 100438), (962, 84986), (1628, 50219), (1924, 42493), (3863, 21164), (5291, 15452), (7726, 10582)]