20721600

素因数分解:

$2^6\times 3^2\times 5^2\times {\mathrm{1439}}^1$

素因数の和:1467

約数の個数: 126

約数和(自身を含む): 73700640

約数和(自身を除く): 52979040

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, 144, 150, 160, 180, 192, 200, 225, 240, 288, 300, 320, 360, 400, 450, 480, 576, 600, 720, 800, 900, 960, 1200, 1439, 1440, 1600, 1800, 2400, 2878, 2880, 3600, 4317, 4800, 5756, 7195, 7200, 8634, 11512, 12951, 14390, 14400, 17268, 21585, 23024, 25902, 28780, 34536, 35975, 43170, 46048, 51804, 57560, 64755, 69072, 71950, 86340, 92096, 103608, 107925, 115120, 129510, 138144, 143900, 172680, 207216, 215850, 230240, 259020, 276288, 287800, 323775, 345360, 414432, 431700, 460480, 518040, 575600, 647550, 690720, 828864, 863400, 1036080, 1151200, 1295100, 1381440, 1726800, 2072160, 2302400, 2590200, 3453600, 4144320, 5180400, 6907200, 10360800, 20721600]

約数ペア:

[(1, 20721600), (2, 10360800), (3, 6907200), (4, 5180400), (5, 4144320), (6, 3453600), (8, 2590200), (9, 2302400), (10, 2072160), (12, 1726800), (15, 1381440), (16, 1295100), (18, 1151200), (20, 1036080), (24, 863400), (25, 828864), (30, 690720), (32, 647550), (36, 575600), (40, 518040), (45, 460480), (48, 431700), (50, 414432), (60, 345360), (64, 323775), (72, 287800), (75, 276288), (80, 259020), (90, 230240), (96, 215850), (100, 207216), (120, 172680), (144, 143900), (150, 138144), (160, 129510), (180, 115120), (192, 107925), (200, 103608), (225, 92096), (240, 86340), (288, 71950), (300, 69072), (320, 64755), (360, 57560), (400, 51804), (450, 46048), (480, 43170), (576, 35975), (600, 34536), (720, 28780), (800, 25902), (900, 23024), (960, 21585), (1200, 17268), (1439, 14400), (1440, 14390), (1600, 12951), (1800, 11512), (2400, 8634), (2878, 7200), (2880, 7195), (3600, 5756), (4317, 4800)]