20504640

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:117

約数の個数: 224

約数和(自身を含む): 73737216

約数和(自身を除く): 53232576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 31, 32, 39, 40, 48, 52, 53, 60, 62, 64, 65, 78, 80, 93, 96, 104, 106, 120, 124, 130, 155, 156, 159, 160, 186, 192, 195, 208, 212, 240, 248, 260, 265, 310, 312, 318, 320, 372, 390, 403, 416, 424, 465, 480, 496, 520, 530, 620, 624, 636, 689, 744, 780, 795, 806, 832, 848, 930, 960, 992, 1040, 1060, 1209, 1240, 1248, 1272, 1378, 1488, 1560, 1590, 1612, 1643, 1696, 1860, 1984, 2015, 2067, 2080, 2120, 2418, 2480, 2496, 2544, 2756, 2976, 3120, 3180, 3224, 3286, 3392, 3445, 3720, 4030, 4134, 4160, 4240, 4836, 4929, 4960, 5088, 5512, 5952, 6045, 6240, 6360, 6448, 6572, 6890, 7440, 8060, 8215, 8268, 8480, 9672, 9858, 9920, 10176, 10335, 11024, 12090, 12480, 12720, 12896, 13144, 13780, 14880, 16120, 16430, 16536, 16960, 19344, 19716, 20670, 21359, 22048, 24180, 24645, 25440, 25792, 26288, 27560, 29760, 32240, 32860, 33072, 38688, 39432, 41340, 42718, 44096, 48360, 49290, 50880, 52576, 55120, 64077, 64480, 65720, 66144, 77376, 78864, 82680, 85436, 96720, 98580, 105152, 106795, 110240, 128154, 128960, 131440, 132288, 157728, 165360, 170872, 193440, 197160, 213590, 220480, 256308, 262880, 315456, 320385, 330720, 341744, 386880, 394320, 427180, 512616, 525760, 640770, 661440, 683488, 788640, 854360, 1025232, 1281540, 1366976, 1577280, 1708720, 2050464, 2563080, 3417440, 4100928, 5126160, 6834880, 10252320, 20504640]

約数ペア:

[(1, 20504640), (2, 10252320), (3, 6834880), (4, 5126160), (5, 4100928), (6, 3417440), (8, 2563080), (10, 2050464), (12, 1708720), (13, 1577280), (15, 1366976), (16, 1281540), (20, 1025232), (24, 854360), (26, 788640), (30, 683488), (31, 661440), (32, 640770), (39, 525760), (40, 512616), (48, 427180), (52, 394320), (53, 386880), (60, 341744), (62, 330720), (64, 320385), (65, 315456), (78, 262880), (80, 256308), (93, 220480), (96, 213590), (104, 197160), (106, 193440), (120, 170872), (124, 165360), (130, 157728), (155, 132288), (156, 131440), (159, 128960), (160, 128154), (186, 110240), (192, 106795), (195, 105152), (208, 98580), (212, 96720), (240, 85436), (248, 82680), (260, 78864), (265, 77376), (310, 66144), (312, 65720), (318, 64480), (320, 64077), (372, 55120), (390, 52576), (403, 50880), (416, 49290), (424, 48360), (465, 44096), (480, 42718), (496, 41340), (520, 39432), (530, 38688), (620, 33072), (624, 32860), (636, 32240), (689, 29760), (744, 27560), (780, 26288), (795, 25792), (806, 25440), (832, 24645), (848, 24180), (930, 22048), (960, 21359), (992, 20670), (1040, 19716), (1060, 19344), (1209, 16960), (1240, 16536), (1248, 16430), (1272, 16120), (1378, 14880), (1488, 13780), (1560, 13144), (1590, 12896), (1612, 12720), (1643, 12480), (1696, 12090), (1860, 11024), (1984, 10335), (2015, 10176), (2067, 9920), (2080, 9858), (2120, 9672), (2418, 8480), (2480, 8268), (2496, 8215), (2544, 8060), (2756, 7440), (2976, 6890), (3120, 6572), (3180, 6448), (3224, 6360), (3286, 6240), (3392, 6045), (3445, 5952), (3720, 5512), (4030, 5088), (4134, 4960), (4160, 4929), (4240, 4836)]