1321031680

素因数分解:

$2^{11}\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:200

約数の個数: 192

約数和(自身を含む): 3396556800

約数和(自身を除く): 2075525120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 71, 79, 80, 92, 115, 128, 142, 158, 160, 184, 230, 256, 284, 316, 320, 355, 368, 395, 460, 512, 568, 632, 640, 710, 736, 790, 920, 1024, 1136, 1264, 1280, 1420, 1472, 1580, 1633, 1817, 1840, 2048, 2272, 2528, 2560, 2840, 2944, 3160, 3266, 3634, 3680, 4544, 5056, 5120, 5609, 5680, 5888, 6320, 6532, 7268, 7360, 8165, 9085, 9088, 10112, 10240, 11218, 11360, 11776, 12640, 13064, 14536, 14720, 16330, 18170, 18176, 20224, 22436, 22720, 23552, 25280, 26128, 28045, 29072, 29440, 32660, 36340, 36352, 40448, 44872, 45440, 47104, 50560, 52256, 56090, 58144, 58880, 65320, 72680, 72704, 80896, 89744, 90880, 101120, 104512, 112180, 116288, 117760, 129007, 130640, 145360, 145408, 161792, 179488, 181760, 202240, 209024, 224360, 232576, 235520, 258014, 261280, 290720, 358976, 363520, 404480, 418048, 448720, 465152, 516028, 522560, 581440, 645035, 717952, 727040, 808960, 836096, 897440, 930304, 1032056, 1045120, 1162880, 1290070, 1435904, 1672192, 1794880, 1860608, 2064112, 2090240, 2325760, 2580140, 2871808, 3344384, 3589760, 3721216, 4128224, 4180480, 4651520, 5160280, 5743616, 7179520, 8256448, 8360960, 9303040, 10320560, 11487232, 14359040, 16512896, 16721920, 18606080, 20641120, 28718080, 33025792, 41282240, 57436160, 66051584, 82564480, 132103168, 165128960, 264206336, 330257920, 660515840, 1321031680]

約数ペア:

[(1, 1321031680), (2, 660515840), (4, 330257920), (5, 264206336), (8, 165128960), (10, 132103168), (16, 82564480), (20, 66051584), (23, 57436160), (32, 41282240), (40, 33025792), (46, 28718080), (64, 20641120), (71, 18606080), (79, 16721920), (80, 16512896), (92, 14359040), (115, 11487232), (128, 10320560), (142, 9303040), (158, 8360960), (160, 8256448), (184, 7179520), (230, 5743616), (256, 5160280), (284, 4651520), (316, 4180480), (320, 4128224), (355, 3721216), (368, 3589760), (395, 3344384), (460, 2871808), (512, 2580140), (568, 2325760), (632, 2090240), (640, 2064112), (710, 1860608), (736, 1794880), (790, 1672192), (920, 1435904), (1024, 1290070), (1136, 1162880), (1264, 1045120), (1280, 1032056), (1420, 930304), (1472, 897440), (1580, 836096), (1633, 808960), (1817, 727040), (1840, 717952), (2048, 645035), (2272, 581440), (2528, 522560), (2560, 516028), (2840, 465152), (2944, 448720), (3160, 418048), (3266, 404480), (3634, 363520), (3680, 358976), (4544, 290720), (5056, 261280), (5120, 258014), (5609, 235520), (5680, 232576), (5888, 224360), (6320, 209024), (6532, 202240), (7268, 181760), (7360, 179488), (8165, 161792), (9085, 145408), (9088, 145360), (10112, 130640), (10240, 129007), (11218, 117760), (11360, 116288), (11776, 112180), (12640, 104512), (13064, 101120), (14536, 90880), (14720, 89744), (16330, 80896), (18170, 72704), (18176, 72680), (20224, 65320), (22436, 58880), (22720, 58144), (23552, 56090), (25280, 52256), (26128, 50560), (28045, 47104), (29072, 45440), (29440, 44872), (32660, 40448), (36340, 36352)]