208990880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 288

約数和(自身を含む): 641208960

約数和(自身を除く): 432218080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 23, 28, 32, 35, 38, 40, 46, 49, 56, 61, 70, 76, 80, 92, 95, 98, 112, 115, 122, 133, 140, 152, 160, 161, 184, 190, 196, 224, 230, 244, 245, 266, 280, 304, 305, 322, 368, 380, 392, 427, 437, 460, 488, 490, 532, 560, 608, 610, 644, 665, 736, 760, 784, 805, 854, 874, 920, 931, 976, 980, 1064, 1120, 1127, 1159, 1220, 1288, 1330, 1403, 1520, 1568, 1610, 1708, 1748, 1840, 1862, 1952, 1960, 2128, 2135, 2185, 2254, 2318, 2440, 2576, 2660, 2806, 2989, 3040, 3059, 3220, 3416, 3496, 3680, 3724, 3920, 4256, 4270, 4370, 4508, 4636, 4655, 4880, 5152, 5320, 5612, 5635, 5795, 5978, 6118, 6440, 6832, 6992, 7015, 7448, 7840, 8113, 8540, 8740, 9016, 9272, 9310, 9760, 9821, 10640, 11224, 11270, 11590, 11956, 12236, 12880, 13664, 13984, 14030, 14896, 14945, 15295, 16226, 17080, 17480, 18032, 18544, 18620, 19642, 21280, 21413, 22448, 22540, 23180, 23912, 24472, 25760, 26657, 28060, 29792, 29890, 30590, 32452, 34160, 34960, 36064, 37088, 37240, 39284, 40565, 42826, 44896, 45080, 46360, 47824, 48944, 49105, 53314, 56120, 56791, 59780, 61180, 64904, 68320, 68747, 69920, 74480, 78568, 81130, 85652, 90160, 92720, 95648, 97888, 98210, 106628, 107065, 112240, 113582, 119560, 122360, 129808, 133285, 137494, 148960, 157136, 162260, 171304, 180320, 185440, 186599, 196420, 213256, 214130, 224480, 227164, 239120, 244720, 259616, 266570, 274988, 283955, 314272, 324520, 342608, 343735, 373198, 392840, 426512, 428260, 454328, 478240, 489440, 533140, 549976, 567910, 649040, 685216, 687470, 746396, 785680, 853024, 856520, 908656, 932995, 1066280, 1099952, 1135820, 1298080, 1306193, 1374940, 1492792, 1571360, 1713040, 1817312, 1865990, 2132560, 2199904, 2271640, 2612386, 2749880, 2985584, 3426080, 3731980, 4265120, 4543280, 5224772, 5499760, 5971168, 6530965, 7463960, 9086560, 10449544, 10999520, 13061930, 14927920, 20899088, 26123860, 29855840, 41798176, 52247720, 104495440, 208990880]

約数ペア:

[(1, 208990880), (2, 104495440), (4, 52247720), (5, 41798176), (7, 29855840), (8, 26123860), (10, 20899088), (14, 14927920), (16, 13061930), (19, 10999520), (20, 10449544), (23, 9086560), (28, 7463960), (32, 6530965), (35, 5971168), (38, 5499760), (40, 5224772), (46, 4543280), (49, 4265120), (56, 3731980), (61, 3426080), (70, 2985584), (76, 2749880), (80, 2612386), (92, 2271640), (95, 2199904), (98, 2132560), (112, 1865990), (115, 1817312), (122, 1713040), (133, 1571360), (140, 1492792), (152, 1374940), (160, 1306193), (161, 1298080), (184, 1135820), (190, 1099952), (196, 1066280), (224, 932995), (230, 908656), (244, 856520), (245, 853024), (266, 785680), (280, 746396), (304, 687470), (305, 685216), (322, 649040), (368, 567910), (380, 549976), (392, 533140), (427, 489440), (437, 478240), (460, 454328), (488, 428260), (490, 426512), (532, 392840), (560, 373198), (608, 343735), (610, 342608), (644, 324520), (665, 314272), (736, 283955), (760, 274988), (784, 266570), (805, 259616), (854, 244720), (874, 239120), (920, 227164), (931, 224480), (976, 214130), (980, 213256), (1064, 196420), (1120, 186599), (1127, 185440), (1159, 180320), (1220, 171304), (1288, 162260), (1330, 157136), (1403, 148960), (1520, 137494), (1568, 133285), (1610, 129808), (1708, 122360), (1748, 119560), (1840, 113582), (1862, 112240), (1952, 107065), (1960, 106628), (2128, 98210), (2135, 97888), (2185, 95648), (2254, 92720), (2318, 90160), (2440, 85652), (2576, 81130), (2660, 78568), (2806, 74480), (2989, 69920), (3040, 68747), (3059, 68320), (3220, 64904), (3416, 61180), (3496, 59780), (3680, 56791), (3724, 56120), (3920, 53314), (4256, 49105), (4270, 48944), (4370, 47824), (4508, 46360), (4636, 45080), (4655, 44896), (4880, 42826), (5152, 40565), (5320, 39284), (5612, 37240), (5635, 37088), (5795, 36064), (5978, 34960), (6118, 34160), (6440, 32452), (6832, 30590), (6992, 29890), (7015, 29792), (7448, 28060), (7840, 26657), (8113, 25760), (8540, 24472), (8740, 23912), (9016, 23180), (9272, 22540), (9310, 22448), (9760, 21413), (9821, 21280), (10640, 19642), (11224, 18620), (11270, 18544), (11590, 18032), (11956, 17480), (12236, 17080), (12880, 16226), (13664, 15295), (13984, 14945), (14030, 14896)]