20782800

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:298

約数の個数: 180

約数和(自身を含む): 75557664

約数和(自身を除く): 54774864

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 25, 30, 36, 40, 45, 46, 48, 50, 60, 69, 72, 75, 80, 90, 92, 100, 115, 120, 138, 144, 150, 180, 184, 200, 207, 225, 230, 240, 251, 276, 300, 345, 360, 368, 400, 414, 450, 460, 502, 552, 575, 600, 690, 720, 753, 828, 900, 920, 1004, 1035, 1104, 1150, 1200, 1255, 1380, 1506, 1656, 1725, 1800, 1840, 2008, 2070, 2259, 2300, 2510, 2760, 3012, 3312, 3450, 3600, 3765, 4016, 4140, 4518, 4600, 5020, 5175, 5520, 5773, 6024, 6275, 6900, 7530, 8280, 9036, 9200, 10040, 10350, 11295, 11546, 12048, 12550, 13800, 15060, 16560, 17319, 18072, 18825, 20080, 20700, 22590, 23092, 25100, 27600, 28865, 30120, 34638, 36144, 37650, 41400, 45180, 46184, 50200, 51957, 56475, 57730, 60240, 69276, 75300, 82800, 86595, 90360, 92368, 100400, 103914, 112950, 115460, 138552, 144325, 150600, 173190, 180720, 207828, 225900, 230920, 259785, 277104, 288650, 301200, 346380, 415656, 432975, 451800, 461840, 519570, 577300, 692760, 831312, 865950, 903600, 1039140, 1154600, 1298925, 1385520, 1731900, 2078280, 2309200, 2597850, 3463800, 4156560, 5195700, 6927600, 10391400, 20782800]

約数ペア:

[(1, 20782800), (2, 10391400), (3, 6927600), (4, 5195700), (5, 4156560), (6, 3463800), (8, 2597850), (9, 2309200), (10, 2078280), (12, 1731900), (15, 1385520), (16, 1298925), (18, 1154600), (20, 1039140), (23, 903600), (24, 865950), (25, 831312), (30, 692760), (36, 577300), (40, 519570), (45, 461840), (46, 451800), (48, 432975), (50, 415656), (60, 346380), (69, 301200), (72, 288650), (75, 277104), (80, 259785), (90, 230920), (92, 225900), (100, 207828), (115, 180720), (120, 173190), (138, 150600), (144, 144325), (150, 138552), (180, 115460), (184, 112950), (200, 103914), (207, 100400), (225, 92368), (230, 90360), (240, 86595), (251, 82800), (276, 75300), (300, 69276), (345, 60240), (360, 57730), (368, 56475), (400, 51957), (414, 50200), (450, 46184), (460, 45180), (502, 41400), (552, 37650), (575, 36144), (600, 34638), (690, 30120), (720, 28865), (753, 27600), (828, 25100), (900, 23092), (920, 22590), (1004, 20700), (1035, 20080), (1104, 18825), (1150, 18072), (1200, 17319), (1255, 16560), (1380, 15060), (1506, 13800), (1656, 12550), (1725, 12048), (1800, 11546), (1840, 11295), (2008, 10350), (2070, 10040), (2259, 9200), (2300, 9036), (2510, 8280), (2760, 7530), (3012, 6900), (3312, 6275), (3450, 6024), (3600, 5773), (3765, 5520), (4016, 5175), (4140, 5020), (4518, 4600)]