64891816

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{1559}}^1$

素因数の和:1630

約数の個数: 48

約数和(自身を含む): 136936800

約数和(自身を除く): 72044984

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 121, 172, 242, 344, 473, 484, 946, 968, 1559, 1892, 3118, 3784, 5203, 6236, 10406, 12472, 17149, 20812, 34298, 41624, 67037, 68596, 134074, 137192, 188639, 268148, 377278, 536296, 737407, 754556, 1474814, 1509112, 2949628, 5899256, 8111477, 16222954, 32445908, 64891816]

約数ペア:

[(1, 64891816), (2, 32445908), (4, 16222954), (8, 8111477), (11, 5899256), (22, 2949628), (43, 1509112), (44, 1474814), (86, 754556), (88, 737407), (121, 536296), (172, 377278), (242, 268148), (344, 188639), (473, 137192), (484, 134074), (946, 68596), (968, 67037), (1559, 41624), (1892, 34298), (3118, 20812), (3784, 17149), (5203, 12472), (6236, 10406)]