20156400

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{509}}^1$

素因数の和:544

約数の個数: 180

約数和(自身を含む): 76457160

約数和(自身を除く): 56300760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 25, 30, 33, 36, 40, 44, 45, 48, 50, 55, 60, 66, 72, 75, 80, 88, 90, 99, 100, 110, 120, 132, 144, 150, 165, 176, 180, 198, 200, 220, 225, 240, 264, 275, 300, 330, 360, 396, 400, 440, 450, 495, 509, 528, 550, 600, 660, 720, 792, 825, 880, 900, 990, 1018, 1100, 1200, 1320, 1527, 1584, 1650, 1800, 1980, 2036, 2200, 2475, 2545, 2640, 3054, 3300, 3600, 3960, 4072, 4400, 4581, 4950, 5090, 5599, 6108, 6600, 7635, 7920, 8144, 9162, 9900, 10180, 11198, 12216, 12725, 13200, 15270, 16797, 18324, 19800, 20360, 22396, 22905, 24432, 25450, 27995, 30540, 33594, 36648, 38175, 39600, 40720, 44792, 45810, 50391, 50900, 55990, 61080, 67188, 73296, 76350, 83985, 89584, 91620, 100782, 101800, 111980, 114525, 122160, 134376, 139975, 152700, 167970, 183240, 201564, 203600, 223960, 229050, 251955, 268752, 279950, 305400, 335940, 366480, 403128, 419925, 447920, 458100, 503910, 559900, 610800, 671880, 806256, 839850, 916200, 1007820, 1119800, 1259775, 1343760, 1679700, 1832400, 2015640, 2239600, 2519550, 3359400, 4031280, 5039100, 6718800, 10078200, 20156400]

約数ペア:

[(1, 20156400), (2, 10078200), (3, 6718800), (4, 5039100), (5, 4031280), (6, 3359400), (8, 2519550), (9, 2239600), (10, 2015640), (11, 1832400), (12, 1679700), (15, 1343760), (16, 1259775), (18, 1119800), (20, 1007820), (22, 916200), (24, 839850), (25, 806256), (30, 671880), (33, 610800), (36, 559900), (40, 503910), (44, 458100), (45, 447920), (48, 419925), (50, 403128), (55, 366480), (60, 335940), (66, 305400), (72, 279950), (75, 268752), (80, 251955), (88, 229050), (90, 223960), (99, 203600), (100, 201564), (110, 183240), (120, 167970), (132, 152700), (144, 139975), (150, 134376), (165, 122160), (176, 114525), (180, 111980), (198, 101800), (200, 100782), (220, 91620), (225, 89584), (240, 83985), (264, 76350), (275, 73296), (300, 67188), (330, 61080), (360, 55990), (396, 50900), (400, 50391), (440, 45810), (450, 44792), (495, 40720), (509, 39600), (528, 38175), (550, 36648), (600, 33594), (660, 30540), (720, 27995), (792, 25450), (825, 24432), (880, 22905), (900, 22396), (990, 20360), (1018, 19800), (1100, 18324), (1200, 16797), (1320, 15270), (1527, 13200), (1584, 12725), (1650, 12216), (1800, 11198), (1980, 10180), (2036, 9900), (2200, 9162), (2475, 8144), (2545, 7920), (2640, 7635), (3054, 6600), (3300, 6108), (3600, 5599), (3960, 5090), (4072, 4950), (4400, 4581)]