257843600

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1297}}^1$

素因数の和:1393

約数の個数: 120

約数和(自身を含む): 718489728

約数和(自身を除く): 460646128

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 71, 80, 100, 112, 140, 142, 175, 200, 280, 284, 350, 355, 400, 497, 560, 568, 700, 710, 994, 1136, 1297, 1400, 1420, 1775, 1988, 2485, 2594, 2800, 2840, 3550, 3976, 4970, 5188, 5680, 6485, 7100, 7952, 9079, 9940, 10376, 12425, 12970, 14200, 18158, 19880, 20752, 24850, 25940, 28400, 32425, 36316, 39760, 45395, 49700, 51880, 64850, 72632, 90790, 92087, 99400, 103760, 129700, 145264, 181580, 184174, 198800, 226975, 259400, 363160, 368348, 453950, 460435, 518800, 644609, 726320, 736696, 907900, 920870, 1289218, 1473392, 1815800, 1841740, 2302175, 2578436, 3223045, 3631600, 3683480, 4604350, 5156872, 6446090, 7366960, 9208700, 10313744, 12892180, 16115225, 18417400, 25784360, 32230450, 36834800, 51568720, 64460900, 128921800, 257843600]

約数ペア:

[(1, 257843600), (2, 128921800), (4, 64460900), (5, 51568720), (7, 36834800), (8, 32230450), (10, 25784360), (14, 18417400), (16, 16115225), (20, 12892180), (25, 10313744), (28, 9208700), (35, 7366960), (40, 6446090), (50, 5156872), (56, 4604350), (70, 3683480), (71, 3631600), (80, 3223045), (100, 2578436), (112, 2302175), (140, 1841740), (142, 1815800), (175, 1473392), (200, 1289218), (280, 920870), (284, 907900), (350, 736696), (355, 726320), (400, 644609), (497, 518800), (560, 460435), (568, 453950), (700, 368348), (710, 363160), (994, 259400), (1136, 226975), (1297, 198800), (1400, 184174), (1420, 181580), (1775, 145264), (1988, 129700), (2485, 103760), (2594, 99400), (2800, 92087), (2840, 90790), (3550, 72632), (3976, 64850), (4970, 51880), (5188, 49700), (5680, 45395), (6485, 39760), (7100, 36316), (7952, 32425), (9079, 28400), (9940, 25940), (10376, 24850), (12425, 20752), (12970, 19880), (14200, 18158)]