1020830720

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1$

素因数の和:365

約数の個数: 264

約数和(自身を含む): 3077525304

約数和(自身を除く): 2056694584

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 64, 65, 70, 80, 91, 98, 104, 112, 128, 130, 140, 160, 182, 196, 208, 224, 245, 256, 260, 280, 313, 320, 364, 392, 416, 448, 455, 490, 512, 520, 560, 626, 637, 640, 728, 784, 832, 896, 910, 980, 1024, 1040, 1120, 1252, 1274, 1280, 1456, 1565, 1568, 1664, 1792, 1820, 1960, 2080, 2191, 2240, 2504, 2548, 2560, 2912, 3130, 3136, 3185, 3328, 3584, 3640, 3920, 4069, 4160, 4382, 4480, 5008, 5096, 5120, 5824, 6260, 6272, 6370, 6656, 7168, 7280, 7840, 8138, 8320, 8764, 8960, 10016, 10192, 10955, 11648, 12520, 12544, 12740, 13312, 14560, 15337, 15680, 16276, 16640, 17528, 17920, 20032, 20345, 20384, 21910, 23296, 25040, 25088, 25480, 28483, 29120, 30674, 31360, 32552, 33280, 35056, 35840, 40064, 40690, 40768, 43820, 46592, 50080, 50176, 50960, 56966, 58240, 61348, 62720, 65104, 66560, 70112, 76685, 80128, 81380, 81536, 87640, 93184, 100160, 101920, 113932, 116480, 122696, 125440, 130208, 140224, 142415, 153370, 160256, 162760, 163072, 175280, 199381, 200320, 203840, 227864, 232960, 245392, 250880, 260416, 280448, 284830, 306740, 320512, 325520, 326144, 350560, 398762, 400640, 407680, 455728, 465920, 490784, 520832, 560896, 569660, 613480, 651040, 652288, 701120, 797524, 801280, 815360, 911456, 981568, 996905, 1041664, 1121792, 1139320, 1226960, 1302080, 1402240, 1595048, 1602560, 1630720, 1822912, 1963136, 1993810, 2083328, 2243584, 2278640, 2453920, 2604160, 2804480, 3190096, 3261440, 3645824, 3926272, 3987620, 4166656, 4557280, 4907840, 5208320, 5608960, 6380192, 7291648, 7852544, 7975240, 9114560, 9815680, 10416640, 11217920, 12760384, 14583296, 15705088, 15950480, 18229120, 19631360, 20833280, 25520768, 29166592, 31900960, 36458240, 39262720, 51041536, 63801920, 72916480, 78525440, 102083072, 127603840, 145832960, 204166144, 255207680, 510415360, 1020830720]

約数ペア:

[(1, 1020830720), (2, 510415360), (4, 255207680), (5, 204166144), (7, 145832960), (8, 127603840), (10, 102083072), (13, 78525440), (14, 72916480), (16, 63801920), (20, 51041536), (26, 39262720), (28, 36458240), (32, 31900960), (35, 29166592), (40, 25520768), (49, 20833280), (52, 19631360), (56, 18229120), (64, 15950480), (65, 15705088), (70, 14583296), (80, 12760384), (91, 11217920), (98, 10416640), (104, 9815680), (112, 9114560), (128, 7975240), (130, 7852544), (140, 7291648), (160, 6380192), (182, 5608960), (196, 5208320), (208, 4907840), (224, 4557280), (245, 4166656), (256, 3987620), (260, 3926272), (280, 3645824), (313, 3261440), (320, 3190096), (364, 2804480), (392, 2604160), (416, 2453920), (448, 2278640), (455, 2243584), (490, 2083328), (512, 1993810), (520, 1963136), (560, 1822912), (626, 1630720), (637, 1602560), (640, 1595048), (728, 1402240), (784, 1302080), (832, 1226960), (896, 1139320), (910, 1121792), (980, 1041664), (1024, 996905), (1040, 981568), (1120, 911456), (1252, 815360), (1274, 801280), (1280, 797524), (1456, 701120), (1565, 652288), (1568, 651040), (1664, 613480), (1792, 569660), (1820, 560896), (1960, 520832), (2080, 490784), (2191, 465920), (2240, 455728), (2504, 407680), (2548, 400640), (2560, 398762), (2912, 350560), (3130, 326144), (3136, 325520), (3185, 320512), (3328, 306740), (3584, 284830), (3640, 280448), (3920, 260416), (4069, 250880), (4160, 245392), (4382, 232960), (4480, 227864), (5008, 203840), (5096, 200320), (5120, 199381), (5824, 175280), (6260, 163072), (6272, 162760), (6370, 160256), (6656, 153370), (7168, 142415), (7280, 140224), (7840, 130208), (8138, 125440), (8320, 122696), (8764, 116480), (8960, 113932), (10016, 101920), (10192, 100160), (10955, 93184), (11648, 87640), (12520, 81536), (12544, 81380), (12740, 80128), (13312, 76685), (14560, 70112), (15337, 66560), (15680, 65104), (16276, 62720), (16640, 61348), (17528, 58240), (17920, 56966), (20032, 50960), (20345, 50176), (20384, 50080), (21910, 46592), (23296, 43820), (25040, 40768), (25088, 40690), (25480, 40064), (28483, 35840), (29120, 35056), (30674, 33280), (31360, 32552)]