20525400

素因数分解:

$2^3\times 3^4\times 5^2\times 7^1\times {\mathrm{181}}^1$

素因数の和:216

約数の個数: 240

約数和(自身を含む): 81921840

約数和(自身を除く): 61396440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 27, 28, 30, 35, 36, 40, 42, 45, 50, 54, 56, 60, 63, 70, 72, 75, 81, 84, 90, 100, 105, 108, 120, 126, 135, 140, 150, 162, 168, 175, 180, 181, 189, 200, 210, 216, 225, 252, 270, 280, 300, 315, 324, 350, 360, 362, 378, 405, 420, 450, 504, 525, 540, 543, 567, 600, 630, 648, 675, 700, 724, 756, 810, 840, 900, 905, 945, 1050, 1080, 1086, 1134, 1260, 1267, 1350, 1400, 1448, 1512, 1575, 1620, 1629, 1800, 1810, 1890, 2025, 2100, 2172, 2268, 2520, 2534, 2700, 2715, 2835, 3150, 3240, 3258, 3620, 3780, 3801, 4050, 4200, 4344, 4525, 4536, 4725, 4887, 5068, 5400, 5430, 5670, 6300, 6335, 6516, 7240, 7560, 7602, 8100, 8145, 9050, 9450, 9774, 10136, 10860, 11340, 11403, 12600, 12670, 13032, 13575, 14175, 14661, 15204, 16200, 16290, 18100, 18900, 19005, 19548, 21720, 22680, 22806, 24435, 25340, 27150, 28350, 29322, 30408, 31675, 32580, 34209, 36200, 37800, 38010, 39096, 40725, 45612, 48870, 50680, 54300, 56700, 57015, 58644, 63350, 65160, 68418, 73305, 76020, 81450, 91224, 95025, 97740, 102627, 108600, 113400, 114030, 117288, 122175, 126700, 136836, 146610, 152040, 162900, 171045, 190050, 195480, 205254, 228060, 244350, 253400, 273672, 285075, 293220, 325800, 342090, 366525, 380100, 410508, 456120, 488700, 513135, 570150, 586440, 684180, 733050, 760200, 821016, 855225, 977400, 1026270, 1140300, 1368360, 1466100, 1710450, 2052540, 2280600, 2565675, 2932200, 3420900, 4105080, 5131350, 6841800, 10262700, 20525400]

約数ペア:

[(1, 20525400), (2, 10262700), (3, 6841800), (4, 5131350), (5, 4105080), (6, 3420900), (7, 2932200), (8, 2565675), (9, 2280600), (10, 2052540), (12, 1710450), (14, 1466100), (15, 1368360), (18, 1140300), (20, 1026270), (21, 977400), (24, 855225), (25, 821016), (27, 760200), (28, 733050), (30, 684180), (35, 586440), (36, 570150), (40, 513135), (42, 488700), (45, 456120), (50, 410508), (54, 380100), (56, 366525), (60, 342090), (63, 325800), (70, 293220), (72, 285075), (75, 273672), (81, 253400), (84, 244350), (90, 228060), (100, 205254), (105, 195480), (108, 190050), (120, 171045), (126, 162900), (135, 152040), (140, 146610), (150, 136836), (162, 126700), (168, 122175), (175, 117288), (180, 114030), (181, 113400), (189, 108600), (200, 102627), (210, 97740), (216, 95025), (225, 91224), (252, 81450), (270, 76020), (280, 73305), (300, 68418), (315, 65160), (324, 63350), (350, 58644), (360, 57015), (362, 56700), (378, 54300), (405, 50680), (420, 48870), (450, 45612), (504, 40725), (525, 39096), (540, 38010), (543, 37800), (567, 36200), (600, 34209), (630, 32580), (648, 31675), (675, 30408), (700, 29322), (724, 28350), (756, 27150), (810, 25340), (840, 24435), (900, 22806), (905, 22680), (945, 21720), (1050, 19548), (1080, 19005), (1086, 18900), (1134, 18100), (1260, 16290), (1267, 16200), (1350, 15204), (1400, 14661), (1448, 14175), (1512, 13575), (1575, 13032), (1620, 12670), (1629, 12600), (1800, 11403), (1810, 11340), (1890, 10860), (2025, 10136), (2100, 9774), (2172, 9450), (2268, 9050), (2520, 8145), (2534, 8100), (2700, 7602), (2715, 7560), (2835, 7240), (3150, 6516), (3240, 6335), (3258, 6300), (3620, 5670), (3780, 5430), (3801, 5400), (4050, 5068), (4200, 4887), (4344, 4725), (4525, 4536)]