206720640

素因数分解:

$2^7\times 3^3\times 5^1\times 7^1\times {\mathrm{1709}}^1$

素因数の和:1744

約数の個数: 256

約数和(自身を含む): 837216000

約数和(自身を除く): 630495360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 336, 360, 378, 384, 420, 432, 448, 480, 504, 540, 560, 576, 630, 640, 672, 720, 756, 840, 864, 896, 945, 960, 1008, 1080, 1120, 1152, 1260, 1344, 1440, 1512, 1680, 1709, 1728, 1890, 1920, 2016, 2160, 2240, 2520, 2688, 2880, 3024, 3360, 3418, 3456, 3780, 4032, 4320, 4480, 5040, 5127, 5760, 6048, 6720, 6836, 7560, 8064, 8545, 8640, 10080, 10254, 11963, 12096, 13440, 13672, 15120, 15381, 17090, 17280, 20160, 20508, 23926, 24192, 25635, 27344, 30240, 30762, 34180, 35889, 40320, 41016, 46143, 47852, 51270, 54688, 59815, 60480, 61524, 68360, 71778, 76905, 82032, 92286, 95704, 102540, 107667, 109376, 119630, 120960, 123048, 136720, 143556, 153810, 164064, 179445, 184572, 191408, 205080, 215334, 218752, 230715, 239260, 246096, 273440, 287112, 307620, 323001, 328128, 358890, 369144, 382816, 410160, 430668, 461430, 478520, 492192, 538335, 546880, 574224, 615240, 646002, 656256, 717780, 738288, 765632, 820320, 861336, 922860, 957040, 984384, 1076670, 1093760, 1148448, 1230480, 1292004, 1435560, 1476576, 1531264, 1615005, 1640640, 1722672, 1845720, 1914080, 1968768, 2153340, 2296896, 2460960, 2584008, 2871120, 2953152, 3230010, 3281280, 3445344, 3691440, 3828160, 4306680, 4593792, 4921920, 5168016, 5742240, 5906304, 6460020, 6890688, 7382880, 7656320, 8613360, 9843840, 10336032, 11484480, 12920040, 13781376, 14765760, 17226720, 20672064, 22968960, 25840080, 29531520, 34453440, 41344128, 51680160, 68906880, 103360320, 206720640]

約数ペア:

[(1, 206720640), (2, 103360320), (3, 68906880), (4, 51680160), (5, 41344128), (6, 34453440), (7, 29531520), (8, 25840080), (9, 22968960), (10, 20672064), (12, 17226720), (14, 14765760), (15, 13781376), (16, 12920040), (18, 11484480), (20, 10336032), (21, 9843840), (24, 8613360), (27, 7656320), (28, 7382880), (30, 6890688), (32, 6460020), (35, 5906304), (36, 5742240), (40, 5168016), (42, 4921920), (45, 4593792), (48, 4306680), (54, 3828160), (56, 3691440), (60, 3445344), (63, 3281280), (64, 3230010), (70, 2953152), (72, 2871120), (80, 2584008), (84, 2460960), (90, 2296896), (96, 2153340), (105, 1968768), (108, 1914080), (112, 1845720), (120, 1722672), (126, 1640640), (128, 1615005), (135, 1531264), (140, 1476576), (144, 1435560), (160, 1292004), (168, 1230480), (180, 1148448), (189, 1093760), (192, 1076670), (210, 984384), (216, 957040), (224, 922860), (240, 861336), (252, 820320), (270, 765632), (280, 738288), (288, 717780), (315, 656256), (320, 646002), (336, 615240), (360, 574224), (378, 546880), (384, 538335), (420, 492192), (432, 478520), (448, 461430), (480, 430668), (504, 410160), (540, 382816), (560, 369144), (576, 358890), (630, 328128), (640, 323001), (672, 307620), (720, 287112), (756, 273440), (840, 246096), (864, 239260), (896, 230715), (945, 218752), (960, 215334), (1008, 205080), (1080, 191408), (1120, 184572), (1152, 179445), (1260, 164064), (1344, 153810), (1440, 143556), (1512, 136720), (1680, 123048), (1709, 120960), (1728, 119630), (1890, 109376), (1920, 107667), (2016, 102540), (2160, 95704), (2240, 92286), (2520, 82032), (2688, 76905), (2880, 71778), (3024, 68360), (3360, 61524), (3418, 60480), (3456, 59815), (3780, 54688), (4032, 51270), (4320, 47852), (4480, 46143), (5040, 41016), (5127, 40320), (5760, 35889), (6048, 34180), (6720, 30762), (6836, 30240), (7560, 27344), (8064, 25635), (8545, 24192), (8640, 23926), (10080, 20508), (10254, 20160), (11963, 17280), (12096, 17090), (13440, 15381), (13672, 15120)]