400663680

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:299

約数の個数: 256

約数和(自身を含む): 1370096640

約数和(自身を除く): 969432960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 43, 46, 48, 60, 64, 69, 80, 86, 92, 96, 115, 120, 128, 129, 138, 160, 172, 184, 192, 211, 215, 230, 240, 258, 276, 320, 344, 345, 368, 384, 422, 430, 460, 480, 516, 552, 633, 640, 645, 688, 690, 736, 844, 860, 920, 960, 989, 1032, 1055, 1104, 1266, 1290, 1376, 1380, 1472, 1688, 1720, 1840, 1920, 1978, 2064, 2110, 2208, 2532, 2580, 2752, 2760, 2944, 2967, 3165, 3376, 3440, 3680, 3956, 4128, 4220, 4416, 4853, 4945, 5064, 5160, 5504, 5520, 5934, 6330, 6752, 6880, 7360, 7912, 8256, 8440, 8832, 9073, 9706, 9890, 10128, 10320, 11040, 11868, 12660, 13504, 13760, 14559, 14720, 14835, 15824, 16512, 16880, 18146, 19412, 19780, 20256, 20640, 22080, 23736, 24265, 25320, 27008, 27219, 27520, 29118, 29670, 31648, 33760, 36292, 38824, 39560, 40512, 41280, 44160, 45365, 47472, 48530, 50640, 54438, 58236, 59340, 63296, 67520, 72584, 72795, 77648, 79120, 81024, 82560, 90730, 94944, 97060, 101280, 108876, 116472, 118680, 126592, 135040, 136095, 145168, 145590, 155296, 158240, 181460, 189888, 194120, 202560, 208679, 217752, 232944, 237360, 272190, 290336, 291180, 310592, 316480, 362920, 379776, 388240, 405120, 417358, 435504, 465888, 474720, 544380, 580672, 582360, 621184, 626037, 632960, 725840, 776480, 834716, 871008, 931776, 949440, 1043395, 1088760, 1161344, 1164720, 1252074, 1451680, 1552960, 1669432, 1742016, 1863552, 1898880, 2086790, 2177520, 2329440, 2504148, 2903360, 3105920, 3130185, 3338864, 3484032, 4173580, 4355040, 4658880, 5008296, 5806720, 6260370, 6677728, 8347160, 8710080, 9317760, 10016592, 12520740, 13355456, 16694320, 17420160, 20033184, 25041480, 26710912, 33388640, 40066368, 50082960, 66777280, 80132736, 100165920, 133554560, 200331840, 400663680]

約数ペア:

[(1, 400663680), (2, 200331840), (3, 133554560), (4, 100165920), (5, 80132736), (6, 66777280), (8, 50082960), (10, 40066368), (12, 33388640), (15, 26710912), (16, 25041480), (20, 20033184), (23, 17420160), (24, 16694320), (30, 13355456), (32, 12520740), (40, 10016592), (43, 9317760), (46, 8710080), (48, 8347160), (60, 6677728), (64, 6260370), (69, 5806720), (80, 5008296), (86, 4658880), (92, 4355040), (96, 4173580), (115, 3484032), (120, 3338864), (128, 3130185), (129, 3105920), (138, 2903360), (160, 2504148), (172, 2329440), (184, 2177520), (192, 2086790), (211, 1898880), (215, 1863552), (230, 1742016), (240, 1669432), (258, 1552960), (276, 1451680), (320, 1252074), (344, 1164720), (345, 1161344), (368, 1088760), (384, 1043395), (422, 949440), (430, 931776), (460, 871008), (480, 834716), (516, 776480), (552, 725840), (633, 632960), (640, 626037), (645, 621184), (688, 582360), (690, 580672), (736, 544380), (844, 474720), (860, 465888), (920, 435504), (960, 417358), (989, 405120), (1032, 388240), (1055, 379776), (1104, 362920), (1266, 316480), (1290, 310592), (1376, 291180), (1380, 290336), (1472, 272190), (1688, 237360), (1720, 232944), (1840, 217752), (1920, 208679), (1978, 202560), (2064, 194120), (2110, 189888), (2208, 181460), (2532, 158240), (2580, 155296), (2752, 145590), (2760, 145168), (2944, 136095), (2967, 135040), (3165, 126592), (3376, 118680), (3440, 116472), (3680, 108876), (3956, 101280), (4128, 97060), (4220, 94944), (4416, 90730), (4853, 82560), (4945, 81024), (5064, 79120), (5160, 77648), (5504, 72795), (5520, 72584), (5934, 67520), (6330, 63296), (6752, 59340), (6880, 58236), (7360, 54438), (7912, 50640), (8256, 48530), (8440, 47472), (8832, 45365), (9073, 44160), (9706, 41280), (9890, 40512), (10128, 39560), (10320, 38824), (11040, 36292), (11868, 33760), (12660, 31648), (13504, 29670), (13760, 29118), (14559, 27520), (14720, 27219), (14835, 27008), (15824, 25320), (16512, 24265), (16880, 23736), (18146, 22080), (19412, 20640), (19780, 20256)]