656875520

素因数分解:

$2^{13}\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:146

約数の個数: 224

約数和(自身を含む): 1887321600

約数和(自身を除く): 1230446080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 79, 80, 112, 116, 128, 140, 145, 158, 160, 203, 224, 232, 256, 280, 290, 316, 320, 395, 406, 448, 464, 512, 553, 560, 580, 632, 640, 790, 812, 896, 928, 1015, 1024, 1106, 1120, 1160, 1264, 1280, 1580, 1624, 1792, 1856, 2030, 2048, 2212, 2240, 2291, 2320, 2528, 2560, 2765, 3160, 3248, 3584, 3712, 4060, 4096, 4424, 4480, 4582, 4640, 5056, 5120, 5530, 6320, 6496, 7168, 7424, 8120, 8192, 8848, 8960, 9164, 9280, 10112, 10240, 11060, 11455, 12640, 12992, 14336, 14848, 16037, 16240, 17696, 17920, 18328, 18560, 20224, 20480, 22120, 22910, 25280, 25984, 28672, 29696, 32074, 32480, 35392, 35840, 36656, 37120, 40448, 40960, 44240, 45820, 50560, 51968, 57344, 59392, 64148, 64960, 70784, 71680, 73312, 74240, 80185, 80896, 88480, 91640, 101120, 103936, 118784, 128296, 129920, 141568, 143360, 146624, 148480, 160370, 161792, 176960, 183280, 202240, 207872, 237568, 256592, 259840, 283136, 286720, 293248, 296960, 320740, 323584, 353920, 366560, 404480, 415744, 513184, 519680, 566272, 586496, 593920, 641480, 647168, 707840, 733120, 808960, 831488, 1026368, 1039360, 1132544, 1172992, 1187840, 1282960, 1415680, 1466240, 1617920, 1662976, 2052736, 2078720, 2265088, 2345984, 2565920, 2831360, 2932480, 3235840, 4105472, 4157440, 4530176, 4691968, 5131840, 5662720, 5864960, 8210944, 8314880, 9383936, 10263680, 11325440, 11729920, 16421888, 18767872, 20527360, 22650880, 23459840, 32843776, 41054720, 46919680, 65687552, 82109440, 93839360, 131375104, 164218880, 328437760, 656875520]

約数ペア:

[(1, 656875520), (2, 328437760), (4, 164218880), (5, 131375104), (7, 93839360), (8, 82109440), (10, 65687552), (14, 46919680), (16, 41054720), (20, 32843776), (28, 23459840), (29, 22650880), (32, 20527360), (35, 18767872), (40, 16421888), (56, 11729920), (58, 11325440), (64, 10263680), (70, 9383936), (79, 8314880), (80, 8210944), (112, 5864960), (116, 5662720), (128, 5131840), (140, 4691968), (145, 4530176), (158, 4157440), (160, 4105472), (203, 3235840), (224, 2932480), (232, 2831360), (256, 2565920), (280, 2345984), (290, 2265088), (316, 2078720), (320, 2052736), (395, 1662976), (406, 1617920), (448, 1466240), (464, 1415680), (512, 1282960), (553, 1187840), (560, 1172992), (580, 1132544), (632, 1039360), (640, 1026368), (790, 831488), (812, 808960), (896, 733120), (928, 707840), (1015, 647168), (1024, 641480), (1106, 593920), (1120, 586496), (1160, 566272), (1264, 519680), (1280, 513184), (1580, 415744), (1624, 404480), (1792, 366560), (1856, 353920), (2030, 323584), (2048, 320740), (2212, 296960), (2240, 293248), (2291, 286720), (2320, 283136), (2528, 259840), (2560, 256592), (2765, 237568), (3160, 207872), (3248, 202240), (3584, 183280), (3712, 176960), (4060, 161792), (4096, 160370), (4424, 148480), (4480, 146624), (4582, 143360), (4640, 141568), (5056, 129920), (5120, 128296), (5530, 118784), (6320, 103936), (6496, 101120), (7168, 91640), (7424, 88480), (8120, 80896), (8192, 80185), (8848, 74240), (8960, 73312), (9164, 71680), (9280, 70784), (10112, 64960), (10240, 64148), (11060, 59392), (11455, 57344), (12640, 51968), (12992, 50560), (14336, 45820), (14848, 44240), (16037, 40960), (16240, 40448), (17696, 37120), (17920, 36656), (18328, 35840), (18560, 35392), (20224, 32480), (20480, 32074), (22120, 29696), (22910, 28672), (25280, 25984)]