19936800

素因数分解:

$2^5\times 3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:113

約数の個数: 288

約数和(自身を含む): 78744960

約数和(自身を除く): 58808160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 25, 26, 27, 30, 32, 36, 39, 40, 45, 48, 50, 52, 54, 60, 65, 71, 72, 75, 78, 80, 90, 96, 100, 104, 108, 117, 120, 130, 135, 142, 144, 150, 156, 160, 180, 195, 200, 208, 213, 216, 225, 234, 240, 260, 270, 284, 288, 300, 312, 325, 351, 355, 360, 390, 400, 416, 426, 432, 450, 468, 480, 520, 540, 568, 585, 600, 624, 639, 650, 675, 702, 710, 720, 780, 800, 852, 864, 900, 923, 936, 975, 1040, 1065, 1080, 1136, 1170, 1200, 1248, 1278, 1300, 1350, 1404, 1420, 1440, 1560, 1704, 1755, 1775, 1800, 1846, 1872, 1917, 1950, 2080, 2130, 2160, 2272, 2340, 2400, 2556, 2600, 2700, 2769, 2808, 2840, 2925, 3120, 3195, 3408, 3510, 3550, 3600, 3692, 3744, 3834, 3900, 4260, 4320, 4615, 4680, 5112, 5200, 5325, 5400, 5538, 5616, 5680, 5850, 6240, 6390, 6816, 7020, 7100, 7200, 7384, 7668, 7800, 8307, 8520, 8775, 9230, 9360, 9585, 10224, 10400, 10650, 10800, 11076, 11232, 11360, 11700, 12780, 13845, 14040, 14200, 14768, 15336, 15600, 15975, 16614, 17040, 17550, 18460, 18720, 19170, 20448, 21300, 21600, 22152, 23075, 23400, 24921, 25560, 27690, 28080, 28400, 29536, 30672, 31200, 31950, 33228, 34080, 35100, 36920, 38340, 41535, 42600, 44304, 46150, 46800, 47925, 49842, 51120, 55380, 56160, 56800, 61344, 63900, 66456, 69225, 70200, 73840, 76680, 83070, 85200, 88608, 92300, 93600, 95850, 99684, 102240, 110760, 124605, 127800, 132912, 138450, 140400, 147680, 153360, 166140, 170400, 184600, 191700, 199368, 207675, 221520, 249210, 255600, 265824, 276900, 280800, 306720, 332280, 369200, 383400, 398736, 415350, 443040, 498420, 511200, 553800, 623025, 664560, 738400, 766800, 797472, 830700, 996840, 1107600, 1246050, 1329120, 1533600, 1661400, 1993680, 2215200, 2492100, 3322800, 3987360, 4984200, 6645600, 9968400, 19936800]

約数ペア:

[(1, 19936800), (2, 9968400), (3, 6645600), (4, 4984200), (5, 3987360), (6, 3322800), (8, 2492100), (9, 2215200), (10, 1993680), (12, 1661400), (13, 1533600), (15, 1329120), (16, 1246050), (18, 1107600), (20, 996840), (24, 830700), (25, 797472), (26, 766800), (27, 738400), (30, 664560), (32, 623025), (36, 553800), (39, 511200), (40, 498420), (45, 443040), (48, 415350), (50, 398736), (52, 383400), (54, 369200), (60, 332280), (65, 306720), (71, 280800), (72, 276900), (75, 265824), (78, 255600), (80, 249210), (90, 221520), (96, 207675), (100, 199368), (104, 191700), (108, 184600), (117, 170400), (120, 166140), (130, 153360), (135, 147680), (142, 140400), (144, 138450), (150, 132912), (156, 127800), (160, 124605), (180, 110760), (195, 102240), (200, 99684), (208, 95850), (213, 93600), (216, 92300), (225, 88608), (234, 85200), (240, 83070), (260, 76680), (270, 73840), (284, 70200), (288, 69225), (300, 66456), (312, 63900), (325, 61344), (351, 56800), (355, 56160), (360, 55380), (390, 51120), (400, 49842), (416, 47925), (426, 46800), (432, 46150), (450, 44304), (468, 42600), (480, 41535), (520, 38340), (540, 36920), (568, 35100), (585, 34080), (600, 33228), (624, 31950), (639, 31200), (650, 30672), (675, 29536), (702, 28400), (710, 28080), (720, 27690), (780, 25560), (800, 24921), (852, 23400), (864, 23075), (900, 22152), (923, 21600), (936, 21300), (975, 20448), (1040, 19170), (1065, 18720), (1080, 18460), (1136, 17550), (1170, 17040), (1200, 16614), (1248, 15975), (1278, 15600), (1300, 15336), (1350, 14768), (1404, 14200), (1420, 14040), (1440, 13845), (1560, 12780), (1704, 11700), (1755, 11360), (1775, 11232), (1800, 11076), (1846, 10800), (1872, 10650), (1917, 10400), (1950, 10224), (2080, 9585), (2130, 9360), (2160, 9230), (2272, 8775), (2340, 8520), (2400, 8307), (2556, 7800), (2600, 7668), (2700, 7384), (2769, 7200), (2808, 7100), (2840, 7020), (2925, 6816), (3120, 6390), (3195, 6240), (3408, 5850), (3510, 5680), (3550, 5616), (3600, 5538), (3692, 5400), (3744, 5325), (3834, 5200), (3900, 5112), (4260, 4680), (4320, 4615)]