256480000

素因数分解:

$2^8\times 5^4\times 7^1\times {\mathrm{229}}^1$

素因数の和:272

約数の個数: 180

約数和(自身を含む): 734327440

約数和(自身を除く): 477847440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 125, 128, 140, 160, 175, 200, 224, 229, 250, 256, 280, 320, 350, 400, 448, 458, 500, 560, 625, 640, 700, 800, 875, 896, 916, 1000, 1120, 1145, 1250, 1280, 1400, 1600, 1603, 1750, 1792, 1832, 2000, 2240, 2290, 2500, 2800, 3200, 3206, 3500, 3664, 4000, 4375, 4480, 4580, 5000, 5600, 5725, 6400, 6412, 7000, 7328, 8000, 8015, 8750, 8960, 9160, 10000, 11200, 11450, 12824, 14000, 14656, 16000, 16030, 17500, 18320, 20000, 22400, 22900, 25648, 28000, 28625, 29312, 32000, 32060, 35000, 36640, 40000, 40075, 44800, 45800, 51296, 56000, 57250, 58624, 64120, 70000, 73280, 80000, 80150, 91600, 102592, 112000, 114500, 128240, 140000, 143125, 146560, 160000, 160300, 183200, 200375, 205184, 224000, 229000, 256480, 280000, 286250, 293120, 320600, 366400, 400750, 410368, 458000, 512960, 560000, 572500, 641200, 732800, 801500, 916000, 1001875, 1025920, 1120000, 1145000, 1282400, 1465600, 1603000, 1832000, 2003750, 2051840, 2290000, 2564800, 3206000, 3664000, 4007500, 4580000, 5129600, 6412000, 7328000, 8015000, 9160000, 10259200, 12824000, 16030000, 18320000, 25648000, 32060000, 36640000, 51296000, 64120000, 128240000, 256480000]

約数ペア:

[(1, 256480000), (2, 128240000), (4, 64120000), (5, 51296000), (7, 36640000), (8, 32060000), (10, 25648000), (14, 18320000), (16, 16030000), (20, 12824000), (25, 10259200), (28, 9160000), (32, 8015000), (35, 7328000), (40, 6412000), (50, 5129600), (56, 4580000), (64, 4007500), (70, 3664000), (80, 3206000), (100, 2564800), (112, 2290000), (125, 2051840), (128, 2003750), (140, 1832000), (160, 1603000), (175, 1465600), (200, 1282400), (224, 1145000), (229, 1120000), (250, 1025920), (256, 1001875), (280, 916000), (320, 801500), (350, 732800), (400, 641200), (448, 572500), (458, 560000), (500, 512960), (560, 458000), (625, 410368), (640, 400750), (700, 366400), (800, 320600), (875, 293120), (896, 286250), (916, 280000), (1000, 256480), (1120, 229000), (1145, 224000), (1250, 205184), (1280, 200375), (1400, 183200), (1600, 160300), (1603, 160000), (1750, 146560), (1792, 143125), (1832, 140000), (2000, 128240), (2240, 114500), (2290, 112000), (2500, 102592), (2800, 91600), (3200, 80150), (3206, 80000), (3500, 73280), (3664, 70000), (4000, 64120), (4375, 58624), (4480, 57250), (4580, 56000), (5000, 51296), (5600, 45800), (5725, 44800), (6400, 40075), (6412, 40000), (7000, 36640), (7328, 35000), (8000, 32060), (8015, 32000), (8750, 29312), (8960, 28625), (9160, 28000), (10000, 25648), (11200, 22900), (11450, 22400), (12824, 20000), (14000, 18320), (14656, 17500), (16000, 16030)]