81062940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{751}}^1$

素因数の和:1027

約数の個数: 96

約数和(自身を含む): 260757504

約数和(自身を除く): 179694564

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 257, 420, 514, 751, 771, 1028, 1285, 1502, 1542, 1799, 2253, 2570, 3004, 3084, 3598, 3755, 3855, 4506, 5140, 5257, 5397, 7196, 7510, 7710, 8995, 9012, 10514, 10794, 11265, 15020, 15420, 15771, 17990, 21028, 21588, 22530, 26285, 26985, 31542, 35980, 45060, 52570, 53970, 63084, 78855, 105140, 107940, 157710, 193007, 315420, 386014, 579021, 772028, 965035, 1158042, 1351049, 1930070, 2316084, 2702098, 2895105, 3860140, 4053147, 5404196, 5790210, 6755245, 8106294, 11580420, 13510490, 16212588, 20265735, 27020980, 40531470, 81062940]

約数ペア:

[(1, 81062940), (2, 40531470), (3, 27020980), (4, 20265735), (5, 16212588), (6, 13510490), (7, 11580420), (10, 8106294), (12, 6755245), (14, 5790210), (15, 5404196), (20, 4053147), (21, 3860140), (28, 2895105), (30, 2702098), (35, 2316084), (42, 1930070), (60, 1351049), (70, 1158042), (84, 965035), (105, 772028), (140, 579021), (210, 386014), (257, 315420), (420, 193007), (514, 157710), (751, 107940), (771, 105140), (1028, 78855), (1285, 63084), (1502, 53970), (1542, 52570), (1799, 45060), (2253, 35980), (2570, 31542), (3004, 26985), (3084, 26285), (3598, 22530), (3755, 21588), (3855, 21028), (4506, 17990), (5140, 15771), (5257, 15420), (5397, 15020), (7196, 11265), (7510, 10794), (7710, 10514), (8995, 9012)]