81290636

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1\times {\mathrm{277}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 167387136

約数和(自身を除く): 86096500

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 223, 277, 329, 446, 554, 658, 892, 1108, 1316, 1561, 1939, 3122, 3878, 6244, 7756, 10481, 13019, 20962, 26038, 41924, 52076, 61771, 73367, 91133, 123542, 146734, 182266, 247084, 293468, 364532, 432397, 864794, 1729588, 2903237, 5806474, 11612948, 20322659, 40645318, 81290636]

約数ペア:

[(1, 81290636), (2, 40645318), (4, 20322659), (7, 11612948), (14, 5806474), (28, 2903237), (47, 1729588), (94, 864794), (188, 432397), (223, 364532), (277, 293468), (329, 247084), (446, 182266), (554, 146734), (658, 123542), (892, 91133), (1108, 73367), (1316, 61771), (1561, 52076), (1939, 41924), (3122, 26038), (3878, 20962), (6244, 13019), (7756, 10481)]