1280573000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2999}}^1$

素因数の和:3088

約数の個数: 128

約数和(自身を含む): 3481920000

約数和(自身を除く): 2201347000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 61, 70, 100, 122, 125, 140, 175, 200, 244, 250, 280, 305, 350, 427, 488, 500, 610, 700, 854, 875, 1000, 1220, 1400, 1525, 1708, 1750, 2135, 2440, 2999, 3050, 3416, 3500, 4270, 5998, 6100, 7000, 7625, 8540, 10675, 11996, 12200, 14995, 15250, 17080, 20993, 21350, 23992, 29990, 30500, 41986, 42700, 53375, 59980, 61000, 74975, 83972, 85400, 104965, 106750, 119960, 149950, 167944, 182939, 209930, 213500, 299900, 365878, 374875, 419860, 427000, 524825, 599800, 731756, 749750, 839720, 914695, 1049650, 1280573, 1463512, 1499500, 1829390, 2099300, 2561146, 2624125, 2999000, 3658780, 4198600, 4573475, 5122292, 5248250, 6402865, 7317560, 9146950, 10244584, 10496500, 12805730, 18293900, 20993000, 22867375, 25611460, 32014325, 36587800, 45734750, 51222920, 64028650, 91469500, 128057300, 160071625, 182939000, 256114600, 320143250, 640286500, 1280573000]

約数ペア:

[(1, 1280573000), (2, 640286500), (4, 320143250), (5, 256114600), (7, 182939000), (8, 160071625), (10, 128057300), (14, 91469500), (20, 64028650), (25, 51222920), (28, 45734750), (35, 36587800), (40, 32014325), (50, 25611460), (56, 22867375), (61, 20993000), (70, 18293900), (100, 12805730), (122, 10496500), (125, 10244584), (140, 9146950), (175, 7317560), (200, 6402865), (244, 5248250), (250, 5122292), (280, 4573475), (305, 4198600), (350, 3658780), (427, 2999000), (488, 2624125), (500, 2561146), (610, 2099300), (700, 1829390), (854, 1499500), (875, 1463512), (1000, 1280573), (1220, 1049650), (1400, 914695), (1525, 839720), (1708, 749750), (1750, 731756), (2135, 599800), (2440, 524825), (2999, 427000), (3050, 419860), (3416, 374875), (3500, 365878), (4270, 299900), (5998, 213500), (6100, 209930), (7000, 182939), (7625, 167944), (8540, 149950), (10675, 119960), (11996, 106750), (12200, 104965), (14995, 85400), (15250, 83972), (17080, 74975), (20993, 61000), (21350, 59980), (23992, 53375), (29990, 42700), (30500, 41986)]