128905896

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:295

約数の個数: 128

約数和(自身を含む): 380712960

約数和(自身を除く): 251807064

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 71, 84, 101, 107, 142, 168, 202, 213, 214, 284, 303, 321, 404, 426, 428, 497, 568, 606, 642, 707, 749, 808, 852, 856, 994, 1212, 1284, 1414, 1491, 1498, 1704, 1988, 2121, 2247, 2424, 2568, 2828, 2982, 2996, 3976, 4242, 4494, 5656, 5964, 5992, 7171, 7597, 8484, 8988, 10807, 11928, 14342, 15194, 16968, 17976, 21513, 21614, 22791, 28684, 30388, 32421, 43026, 43228, 45582, 50197, 53179, 57368, 60776, 64842, 75649, 86052, 86456, 91164, 100394, 106358, 129684, 150591, 151298, 159537, 172104, 182328, 200788, 212716, 226947, 259368, 301182, 302596, 319074, 401576, 425432, 453894, 602364, 605192, 638148, 767297, 907788, 1204728, 1276296, 1534594, 1815576, 2301891, 3069188, 4603782, 5371079, 6138376, 9207564, 10742158, 16113237, 18415128, 21484316, 32226474, 42968632, 64452948, 128905896]

約数ペア:

[(1, 128905896), (2, 64452948), (3, 42968632), (4, 32226474), (6, 21484316), (7, 18415128), (8, 16113237), (12, 10742158), (14, 9207564), (21, 6138376), (24, 5371079), (28, 4603782), (42, 3069188), (56, 2301891), (71, 1815576), (84, 1534594), (101, 1276296), (107, 1204728), (142, 907788), (168, 767297), (202, 638148), (213, 605192), (214, 602364), (284, 453894), (303, 425432), (321, 401576), (404, 319074), (426, 302596), (428, 301182), (497, 259368), (568, 226947), (606, 212716), (642, 200788), (707, 182328), (749, 172104), (808, 159537), (852, 151298), (856, 150591), (994, 129684), (1212, 106358), (1284, 100394), (1414, 91164), (1491, 86456), (1498, 86052), (1704, 75649), (1988, 64842), (2121, 60776), (2247, 57368), (2424, 53179), (2568, 50197), (2828, 45582), (2982, 43228), (2996, 43026), (3976, 32421), (4242, 30388), (4494, 28684), (5656, 22791), (5964, 21614), (5992, 21513), (7171, 17976), (7597, 16968), (8484, 15194), (8988, 14342), (10807, 11928)]