20354400

素因数分解:

$2^5\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{257}}^1$

素因数の和:294

約数の個数: 216

約数和(自身を含む): 78604344

約数和(自身を除く): 58249944

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 25, 30, 32, 33, 36, 40, 44, 45, 48, 50, 55, 60, 66, 72, 75, 80, 88, 90, 96, 99, 100, 110, 120, 132, 144, 150, 160, 165, 176, 180, 198, 200, 220, 225, 240, 257, 264, 275, 288, 300, 330, 352, 360, 396, 400, 440, 450, 480, 495, 514, 528, 550, 600, 660, 720, 771, 792, 800, 825, 880, 900, 990, 1028, 1056, 1100, 1200, 1285, 1320, 1440, 1542, 1584, 1650, 1760, 1800, 1980, 2056, 2200, 2313, 2400, 2475, 2570, 2640, 2827, 3084, 3168, 3300, 3600, 3855, 3960, 4112, 4400, 4626, 4950, 5140, 5280, 5654, 6168, 6425, 6600, 7200, 7710, 7920, 8224, 8481, 8800, 9252, 9900, 10280, 11308, 11565, 12336, 12850, 13200, 14135, 15420, 15840, 16962, 18504, 19275, 19800, 20560, 22616, 23130, 24672, 25443, 25700, 26400, 28270, 30840, 33924, 37008, 38550, 39600, 41120, 42405, 45232, 46260, 50886, 51400, 56540, 57825, 61680, 67848, 70675, 74016, 77100, 79200, 84810, 90464, 92520, 101772, 102800, 113080, 115650, 123360, 127215, 135696, 141350, 154200, 169620, 185040, 203544, 205600, 212025, 226160, 231300, 254430, 271392, 282700, 308400, 339240, 370080, 407088, 424050, 452320, 462600, 508860, 565400, 616800, 636075, 678480, 814176, 848100, 925200, 1017720, 1130800, 1272150, 1356960, 1696200, 1850400, 2035440, 2261600, 2544300, 3392400, 4070880, 5088600, 6784800, 10177200, 20354400]

約数ペア:

[(1, 20354400), (2, 10177200), (3, 6784800), (4, 5088600), (5, 4070880), (6, 3392400), (8, 2544300), (9, 2261600), (10, 2035440), (11, 1850400), (12, 1696200), (15, 1356960), (16, 1272150), (18, 1130800), (20, 1017720), (22, 925200), (24, 848100), (25, 814176), (30, 678480), (32, 636075), (33, 616800), (36, 565400), (40, 508860), (44, 462600), (45, 452320), (48, 424050), (50, 407088), (55, 370080), (60, 339240), (66, 308400), (72, 282700), (75, 271392), (80, 254430), (88, 231300), (90, 226160), (96, 212025), (99, 205600), (100, 203544), (110, 185040), (120, 169620), (132, 154200), (144, 141350), (150, 135696), (160, 127215), (165, 123360), (176, 115650), (180, 113080), (198, 102800), (200, 101772), (220, 92520), (225, 90464), (240, 84810), (257, 79200), (264, 77100), (275, 74016), (288, 70675), (300, 67848), (330, 61680), (352, 57825), (360, 56540), (396, 51400), (400, 50886), (440, 46260), (450, 45232), (480, 42405), (495, 41120), (514, 39600), (528, 38550), (550, 37008), (600, 33924), (660, 30840), (720, 28270), (771, 26400), (792, 25700), (800, 25443), (825, 24672), (880, 23130), (900, 22616), (990, 20560), (1028, 19800), (1056, 19275), (1100, 18504), (1200, 16962), (1285, 15840), (1320, 15420), (1440, 14135), (1542, 13200), (1584, 12850), (1650, 12336), (1760, 11565), (1800, 11308), (1980, 10280), (2056, 9900), (2200, 9252), (2313, 8800), (2400, 8481), (2475, 8224), (2570, 7920), (2640, 7710), (2827, 7200), (3084, 6600), (3168, 6425), (3300, 6168), (3600, 5654), (3855, 5280), (3960, 5140), (4112, 4950), (4400, 4626)]