19987200

素因数分解:

$2^8\times 3^2\times 5^2\times {\mathrm{347}}^1$

素因数の和:379

約数の個数: 162

約数和(自身を含む): 71664684

約数和(自身を除く): 51677484

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, 90, 96, 100, 120, 128, 144, 150, 160, 180, 192, 200, 225, 240, 256, 288, 300, 320, 347, 360, 384, 400, 450, 480, 576, 600, 640, 694, 720, 768, 800, 900, 960, 1041, 1152, 1200, 1280, 1388, 1440, 1600, 1735, 1800, 1920, 2082, 2304, 2400, 2776, 2880, 3123, 3200, 3470, 3600, 3840, 4164, 4800, 5205, 5552, 5760, 6246, 6400, 6940, 7200, 8328, 8675, 9600, 10410, 11104, 11520, 12492, 13880, 14400, 15615, 16656, 17350, 19200, 20820, 22208, 24984, 26025, 27760, 28800, 31230, 33312, 34700, 41640, 44416, 49968, 52050, 55520, 57600, 62460, 66624, 69400, 78075, 83280, 88832, 99936, 104100, 111040, 124920, 133248, 138800, 156150, 166560, 199872, 208200, 222080, 249840, 266496, 277600, 312300, 333120, 399744, 416400, 444160, 499680, 555200, 624600, 666240, 799488, 832800, 999360, 1110400, 1249200, 1332480, 1665600, 1998720, 2220800, 2498400, 3331200, 3997440, 4996800, 6662400, 9993600, 19987200]

約数ペア:

[(1, 19987200), (2, 9993600), (3, 6662400), (4, 4996800), (5, 3997440), (6, 3331200), (8, 2498400), (9, 2220800), (10, 1998720), (12, 1665600), (15, 1332480), (16, 1249200), (18, 1110400), (20, 999360), (24, 832800), (25, 799488), (30, 666240), (32, 624600), (36, 555200), (40, 499680), (45, 444160), (48, 416400), (50, 399744), (60, 333120), (64, 312300), (72, 277600), (75, 266496), (80, 249840), (90, 222080), (96, 208200), (100, 199872), (120, 166560), (128, 156150), (144, 138800), (150, 133248), (160, 124920), (180, 111040), (192, 104100), (200, 99936), (225, 88832), (240, 83280), (256, 78075), (288, 69400), (300, 66624), (320, 62460), (347, 57600), (360, 55520), (384, 52050), (400, 49968), (450, 44416), (480, 41640), (576, 34700), (600, 33312), (640, 31230), (694, 28800), (720, 27760), (768, 26025), (800, 24984), (900, 22208), (960, 20820), (1041, 19200), (1152, 17350), (1200, 16656), (1280, 15615), (1388, 14400), (1440, 13880), (1600, 12492), (1735, 11520), (1800, 11104), (1920, 10410), (2082, 9600), (2304, 8675), (2400, 8328), (2776, 7200), (2880, 6940), (3123, 6400), (3200, 6246), (3470, 5760), (3600, 5552), (3840, 5205), (4164, 4800)]