20708800

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{43}}^2$

素因数の和:115

約数の個数: 126

約数和(自身を含む): 59621928

約数和(自身を除く): 38913128

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 43, 50, 56, 64, 70, 80, 86, 100, 112, 140, 160, 172, 175, 200, 215, 224, 280, 301, 320, 344, 350, 400, 430, 448, 560, 602, 688, 700, 800, 860, 1075, 1120, 1204, 1376, 1400, 1505, 1600, 1720, 1849, 2150, 2240, 2408, 2752, 2800, 3010, 3440, 3698, 4300, 4816, 5600, 6020, 6880, 7396, 7525, 8600, 9245, 9632, 11200, 12040, 12943, 13760, 14792, 15050, 17200, 18490, 19264, 24080, 25886, 29584, 30100, 34400, 36980, 46225, 48160, 51772, 59168, 60200, 64715, 68800, 73960, 92450, 96320, 103544, 118336, 120400, 129430, 147920, 184900, 207088, 240800, 258860, 295840, 323575, 369800, 414176, 481600, 517720, 591680, 647150, 739600, 828352, 1035440, 1294300, 1479200, 2070880, 2588600, 2958400, 4141760, 5177200, 10354400, 20708800]

約数ペア:

[(1, 20708800), (2, 10354400), (4, 5177200), (5, 4141760), (7, 2958400), (8, 2588600), (10, 2070880), (14, 1479200), (16, 1294300), (20, 1035440), (25, 828352), (28, 739600), (32, 647150), (35, 591680), (40, 517720), (43, 481600), (50, 414176), (56, 369800), (64, 323575), (70, 295840), (80, 258860), (86, 240800), (100, 207088), (112, 184900), (140, 147920), (160, 129430), (172, 120400), (175, 118336), (200, 103544), (215, 96320), (224, 92450), (280, 73960), (301, 68800), (320, 64715), (344, 60200), (350, 59168), (400, 51772), (430, 48160), (448, 46225), (560, 36980), (602, 34400), (688, 30100), (700, 29584), (800, 25886), (860, 24080), (1075, 19264), (1120, 18490), (1204, 17200), (1376, 15050), (1400, 14792), (1505, 13760), (1600, 12943), (1720, 12040), (1849, 11200), (2150, 9632), (2240, 9245), (2408, 8600), (2752, 7525), (2800, 7396), (3010, 6880), (3440, 6020), (3698, 5600), (4300, 4816)]