20505600

素因数分解:

$2^{10}\times 3^2\times 5^2\times {\mathrm{89}}^1$

素因数の和:125

約数の個数: 198

約数和(自身を含む): 74244690

約数和(自身を除く): 53739090

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 64, 72, 75, 80, 89, 90, 96, 100, 120, 128, 144, 150, 160, 178, 180, 192, 200, 225, 240, 256, 267, 288, 300, 320, 356, 360, 384, 400, 445, 450, 480, 512, 534, 576, 600, 640, 712, 720, 768, 800, 801, 890, 900, 960, 1024, 1068, 1152, 1200, 1280, 1335, 1424, 1440, 1536, 1600, 1602, 1780, 1800, 1920, 2136, 2225, 2304, 2400, 2560, 2670, 2848, 2880, 3072, 3200, 3204, 3560, 3600, 3840, 4005, 4272, 4450, 4608, 4800, 5120, 5340, 5696, 5760, 6400, 6408, 6675, 7120, 7200, 7680, 8010, 8544, 8900, 9216, 9600, 10680, 11392, 11520, 12800, 12816, 13350, 14240, 14400, 15360, 16020, 17088, 17800, 19200, 20025, 21360, 22784, 23040, 25600, 25632, 26700, 28480, 28800, 32040, 34176, 35600, 38400, 40050, 42720, 45568, 46080, 51264, 53400, 56960, 57600, 64080, 68352, 71200, 76800, 80100, 85440, 91136, 102528, 106800, 113920, 115200, 128160, 136704, 142400, 160200, 170880, 205056, 213600, 227840, 230400, 256320, 273408, 284800, 320400, 341760, 410112, 427200, 455680, 512640, 569600, 640800, 683520, 820224, 854400, 1025280, 1139200, 1281600, 1367040, 1708800, 2050560, 2278400, 2563200, 3417600, 4101120, 5126400, 6835200, 10252800, 20505600]

約数ペア:

[(1, 20505600), (2, 10252800), (3, 6835200), (4, 5126400), (5, 4101120), (6, 3417600), (8, 2563200), (9, 2278400), (10, 2050560), (12, 1708800), (15, 1367040), (16, 1281600), (18, 1139200), (20, 1025280), (24, 854400), (25, 820224), (30, 683520), (32, 640800), (36, 569600), (40, 512640), (45, 455680), (48, 427200), (50, 410112), (60, 341760), (64, 320400), (72, 284800), (75, 273408), (80, 256320), (89, 230400), (90, 227840), (96, 213600), (100, 205056), (120, 170880), (128, 160200), (144, 142400), (150, 136704), (160, 128160), (178, 115200), (180, 113920), (192, 106800), (200, 102528), (225, 91136), (240, 85440), (256, 80100), (267, 76800), (288, 71200), (300, 68352), (320, 64080), (356, 57600), (360, 56960), (384, 53400), (400, 51264), (445, 46080), (450, 45568), (480, 42720), (512, 40050), (534, 38400), (576, 35600), (600, 34176), (640, 32040), (712, 28800), (720, 28480), (768, 26700), (800, 25632), (801, 25600), (890, 23040), (900, 22784), (960, 21360), (1024, 20025), (1068, 19200), (1152, 17800), (1200, 17088), (1280, 16020), (1335, 15360), (1424, 14400), (1440, 14240), (1536, 13350), (1600, 12816), (1602, 12800), (1780, 11520), (1800, 11392), (1920, 10680), (2136, 9600), (2225, 9216), (2304, 8900), (2400, 8544), (2560, 8010), (2670, 7680), (2848, 7200), (2880, 7120), (3072, 6675), (3200, 6408), (3204, 6400), (3560, 5760), (3600, 5696), (3840, 5340), (4005, 5120), (4272, 4800), (4450, 4608)]