81420976

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{55921}}^1$

素因数の和:55949

約数の個数: 40

約数和(自身を含む): 194161184

約数和(自身を除く): 112740208

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 55921, 111842, 223684, 391447, 447368, 726973, 782894, 894736, 1453946, 1565788, 2907892, 3131576, 5088811, 5815784, 6263152, 10177622, 11631568, 20355244, 40710488, 81420976]

約数ペア:

[(1, 81420976), (2, 40710488), (4, 20355244), (7, 11631568), (8, 10177622), (13, 6263152), (14, 5815784), (16, 5088811), (26, 3131576), (28, 2907892), (52, 1565788), (56, 1453946), (91, 894736), (104, 782894), (112, 726973), (182, 447368), (208, 391447), (364, 223684), (728, 111842), (1456, 55921)]