640192000

素因数分解:

$2^9\times 5^3\times 7^1\times {\mathrm{1429}}^1$

素因数の和:1469

約数の個数: 160

約数和(自身を含む): 1825686720

約数和(自身を除く): 1185494720

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, 250, 256, 280, 320, 350, 400, 448, 500, 512, 560, 640, 700, 800, 875, 896, 1000, 1120, 1280, 1400, 1429, 1600, 1750, 1792, 2000, 2240, 2560, 2800, 2858, 3200, 3500, 3584, 4000, 4480, 5600, 5716, 6400, 7000, 7145, 8000, 8960, 10003, 11200, 11432, 12800, 14000, 14290, 16000, 17920, 20006, 22400, 22864, 28000, 28580, 32000, 35725, 40012, 44800, 45728, 50015, 56000, 57160, 64000, 71450, 80024, 89600, 91456, 100030, 112000, 114320, 142900, 160048, 178625, 182912, 200060, 224000, 228640, 250075, 285800, 320096, 357250, 365824, 400120, 448000, 457280, 500150, 571600, 640192, 714500, 731648, 800240, 914560, 1000300, 1143200, 1250375, 1280384, 1429000, 1600480, 1829120, 2000600, 2286400, 2500750, 2560768, 2858000, 3200960, 3658240, 4001200, 4572800, 5001500, 5121536, 5716000, 6401920, 8002400, 9145600, 10003000, 11432000, 12803840, 16004800, 18291200, 20006000, 22864000, 25607680, 32009600, 40012000, 45728000, 64019200, 80024000, 91456000, 128038400, 160048000, 320096000, 640192000]

約数ペア:

[(1, 640192000), (2, 320096000), (4, 160048000), (5, 128038400), (7, 91456000), (8, 80024000), (10, 64019200), (14, 45728000), (16, 40012000), (20, 32009600), (25, 25607680), (28, 22864000), (32, 20006000), (35, 18291200), (40, 16004800), (50, 12803840), (56, 11432000), (64, 10003000), (70, 9145600), (80, 8002400), (100, 6401920), (112, 5716000), (125, 5121536), (128, 5001500), (140, 4572800), (160, 4001200), (175, 3658240), (200, 3200960), (224, 2858000), (250, 2560768), (256, 2500750), (280, 2286400), (320, 2000600), (350, 1829120), (400, 1600480), (448, 1429000), (500, 1280384), (512, 1250375), (560, 1143200), (640, 1000300), (700, 914560), (800, 800240), (875, 731648), (896, 714500), (1000, 640192), (1120, 571600), (1280, 500150), (1400, 457280), (1429, 448000), (1600, 400120), (1750, 365824), (1792, 357250), (2000, 320096), (2240, 285800), (2560, 250075), (2800, 228640), (2858, 224000), (3200, 200060), (3500, 182912), (3584, 178625), (4000, 160048), (4480, 142900), (5600, 114320), (5716, 112000), (6400, 100030), (7000, 91456), (7145, 89600), (8000, 80024), (8960, 71450), (10003, 64000), (11200, 57160), (11432, 56000), (12800, 50015), (14000, 45728), (14290, 44800), (16000, 40012), (17920, 35725), (20006, 32000), (22400, 28580), (22864, 28000)]