81919136

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{1031}}^1$

素因数の和:1245

約数の個数: 48

約数和(自身を含む): 174763008

約数和(自身を除く): 92843872

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 191, 208, 382, 416, 764, 1031, 1528, 2062, 2483, 3056, 4124, 4966, 6112, 8248, 9932, 13403, 16496, 19864, 26806, 32992, 39728, 53612, 79456, 107224, 196921, 214448, 393842, 428896, 787684, 1575368, 2559973, 3150736, 5119946, 6301472, 10239892, 20479784, 40959568, 81919136]

約数ペア:

[(1, 81919136), (2, 40959568), (4, 20479784), (8, 10239892), (13, 6301472), (16, 5119946), (26, 3150736), (32, 2559973), (52, 1575368), (104, 787684), (191, 428896), (208, 393842), (382, 214448), (416, 196921), (764, 107224), (1031, 79456), (1528, 53612), (2062, 39728), (2483, 32992), (3056, 26806), (4124, 19864), (4966, 16496), (6112, 13403), (8248, 9932)]