257351220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{7043}}^1$

素因数の和:7094

約数の個数: 144

約数和(自身を含む): 923045760

約数和(自身を除く): 665694540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 29, 30, 35, 36, 42, 45, 58, 60, 63, 70, 84, 87, 90, 105, 116, 126, 140, 145, 174, 180, 203, 210, 252, 261, 290, 315, 348, 406, 420, 435, 522, 580, 609, 630, 812, 870, 1015, 1044, 1218, 1260, 1305, 1740, 1827, 2030, 2436, 2610, 3045, 3654, 4060, 5220, 6090, 7043, 7308, 9135, 12180, 14086, 18270, 21129, 28172, 35215, 36540, 42258, 49301, 63387, 70430, 84516, 98602, 105645, 126774, 140860, 147903, 197204, 204247, 211290, 246505, 253548, 295806, 316935, 408494, 422580, 443709, 493010, 591612, 612741, 633870, 739515, 816988, 887418, 986020, 1021235, 1225482, 1267740, 1429729, 1479030, 1774836, 1838223, 2042470, 2218545, 2450964, 2859458, 2958060, 3063705, 3676446, 4084940, 4289187, 4437090, 5718916, 6127410, 7148645, 7352892, 8578374, 8874180, 9191115, 12254820, 12867561, 14297290, 17156748, 18382230, 21445935, 25735122, 28594580, 36764460, 42891870, 51470244, 64337805, 85783740, 128675610, 257351220]

約数ペア:

[(1, 257351220), (2, 128675610), (3, 85783740), (4, 64337805), (5, 51470244), (6, 42891870), (7, 36764460), (9, 28594580), (10, 25735122), (12, 21445935), (14, 18382230), (15, 17156748), (18, 14297290), (20, 12867561), (21, 12254820), (28, 9191115), (29, 8874180), (30, 8578374), (35, 7352892), (36, 7148645), (42, 6127410), (45, 5718916), (58, 4437090), (60, 4289187), (63, 4084940), (70, 3676446), (84, 3063705), (87, 2958060), (90, 2859458), (105, 2450964), (116, 2218545), (126, 2042470), (140, 1838223), (145, 1774836), (174, 1479030), (180, 1429729), (203, 1267740), (210, 1225482), (252, 1021235), (261, 986020), (290, 887418), (315, 816988), (348, 739515), (406, 633870), (420, 612741), (435, 591612), (522, 493010), (580, 443709), (609, 422580), (630, 408494), (812, 316935), (870, 295806), (1015, 253548), (1044, 246505), (1218, 211290), (1260, 204247), (1305, 197204), (1740, 147903), (1827, 140860), (2030, 126774), (2436, 105645), (2610, 98602), (3045, 84516), (3654, 70430), (4060, 63387), (5220, 49301), (6090, 42258), (7043, 36540), (7308, 35215), (9135, 28172), (12180, 21129), (14086, 18270)]