640122000

素因数分解:

$2^4\times 3^1\times 5^3\times 7^1\times {\mathrm{15241}}^1$

素因数の和:15274

約数の個数: 160

約数和(自身を含む): 2358729984

約数和(自身を除く): 1718607984

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 100, 105, 112, 120, 125, 140, 150, 168, 175, 200, 210, 240, 250, 280, 300, 336, 350, 375, 400, 420, 500, 525, 560, 600, 700, 750, 840, 875, 1000, 1050, 1200, 1400, 1500, 1680, 1750, 2000, 2100, 2625, 2800, 3000, 3500, 4200, 5250, 6000, 7000, 8400, 10500, 14000, 15241, 21000, 30482, 42000, 45723, 60964, 76205, 91446, 106687, 121928, 152410, 182892, 213374, 228615, 243856, 304820, 320061, 365784, 381025, 426748, 457230, 533435, 609640, 640122, 731568, 762050, 853496, 914460, 1066870, 1143075, 1219280, 1280244, 1524100, 1600305, 1706992, 1828920, 1905125, 2133740, 2286150, 2560488, 2667175, 3048200, 3200610, 3657840, 3810250, 4267480, 4572300, 5120976, 5334350, 5715375, 6096400, 6401220, 7620500, 8001525, 8534960, 9144600, 10668700, 11430750, 12802440, 13335875, 15241000, 16003050, 18289200, 21337400, 22861500, 25604880, 26671750, 30482000, 32006100, 40007625, 42674800, 45723000, 53343500, 64012200, 80015250, 91446000, 106687000, 128024400, 160030500, 213374000, 320061000, 640122000]

約数ペア:

[(1, 640122000), (2, 320061000), (3, 213374000), (4, 160030500), (5, 128024400), (6, 106687000), (7, 91446000), (8, 80015250), (10, 64012200), (12, 53343500), (14, 45723000), (15, 42674800), (16, 40007625), (20, 32006100), (21, 30482000), (24, 26671750), (25, 25604880), (28, 22861500), (30, 21337400), (35, 18289200), (40, 16003050), (42, 15241000), (48, 13335875), (50, 12802440), (56, 11430750), (60, 10668700), (70, 9144600), (75, 8534960), (80, 8001525), (84, 7620500), (100, 6401220), (105, 6096400), (112, 5715375), (120, 5334350), (125, 5120976), (140, 4572300), (150, 4267480), (168, 3810250), (175, 3657840), (200, 3200610), (210, 3048200), (240, 2667175), (250, 2560488), (280, 2286150), (300, 2133740), (336, 1905125), (350, 1828920), (375, 1706992), (400, 1600305), (420, 1524100), (500, 1280244), (525, 1219280), (560, 1143075), (600, 1066870), (700, 914460), (750, 853496), (840, 762050), (875, 731568), (1000, 640122), (1050, 609640), (1200, 533435), (1400, 457230), (1500, 426748), (1680, 381025), (1750, 365784), (2000, 320061), (2100, 304820), (2625, 243856), (2800, 228615), (3000, 213374), (3500, 182892), (4200, 152410), (5250, 121928), (6000, 106687), (7000, 91446), (8400, 76205), (10500, 60964), (14000, 45723), (15241, 42000), (21000, 30482)]