81395916

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:503

約数の個数: 96

約数和(自身を含む): 226437120

約数和(自身を除く): 145041204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 53, 84, 94, 106, 141, 159, 188, 212, 282, 318, 329, 371, 389, 564, 636, 658, 742, 778, 987, 1113, 1167, 1316, 1484, 1556, 1974, 2226, 2334, 2491, 2723, 3948, 4452, 4668, 4982, 5446, 7473, 8169, 9964, 10892, 14946, 16338, 17437, 18283, 20617, 29892, 32676, 34874, 36566, 41234, 52311, 54849, 61851, 69748, 73132, 82468, 104622, 109698, 123702, 127981, 144319, 209244, 219396, 247404, 255962, 288638, 383943, 432957, 511924, 577276, 767886, 865914, 968999, 1535772, 1731828, 1937998, 2906997, 3875996, 5813994, 6782993, 11627988, 13565986, 20348979, 27131972, 40697958, 81395916]

約数ペア:

[(1, 81395916), (2, 40697958), (3, 27131972), (4, 20348979), (6, 13565986), (7, 11627988), (12, 6782993), (14, 5813994), (21, 3875996), (28, 2906997), (42, 1937998), (47, 1731828), (53, 1535772), (84, 968999), (94, 865914), (106, 767886), (141, 577276), (159, 511924), (188, 432957), (212, 383943), (282, 288638), (318, 255962), (329, 247404), (371, 219396), (389, 209244), (564, 144319), (636, 127981), (658, 123702), (742, 109698), (778, 104622), (987, 82468), (1113, 73132), (1167, 69748), (1316, 61851), (1484, 54849), (1556, 52311), (1974, 41234), (2226, 36566), (2334, 34874), (2491, 32676), (2723, 29892), (3948, 20617), (4452, 18283), (4668, 17437), (4982, 16338), (5446, 14946), (7473, 10892), (8169, 9964)]