1389275440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{811}}^1$

素因数の和:880

約数の個数: 240

約数和(自身を含む): 4132235520

約数和(自身を除く): 2742960080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 23, 28, 35, 38, 40, 46, 49, 56, 70, 76, 80, 92, 95, 98, 112, 115, 133, 140, 152, 161, 184, 190, 196, 230, 245, 266, 280, 304, 322, 368, 380, 392, 437, 460, 490, 532, 560, 644, 665, 760, 784, 805, 811, 874, 920, 931, 980, 1064, 1127, 1288, 1330, 1520, 1610, 1622, 1748, 1840, 1862, 1960, 2128, 2185, 2254, 2576, 2660, 3059, 3220, 3244, 3496, 3724, 3920, 4055, 4370, 4508, 4655, 5320, 5635, 5677, 6118, 6440, 6488, 6992, 7448, 8110, 8740, 9016, 9310, 10640, 11270, 11354, 12236, 12880, 12976, 14896, 15295, 15409, 16220, 17480, 18032, 18620, 18653, 21413, 22540, 22708, 24472, 28385, 30590, 30818, 32440, 34960, 37240, 37306, 39739, 42826, 45080, 45416, 48944, 56770, 61180, 61636, 64880, 74480, 74612, 77045, 79478, 85652, 90160, 90832, 93265, 107065, 107863, 113540, 122360, 123272, 130571, 149224, 154090, 158956, 171304, 186530, 198695, 214130, 215726, 227080, 244720, 246544, 261142, 298448, 308180, 317912, 342608, 354407, 373060, 397390, 428260, 431452, 454160, 522284, 539315, 616360, 635824, 652855, 708814, 746120, 755041, 794780, 856520, 862904, 913997, 1044568, 1078630, 1232720, 1305710, 1417628, 1492240, 1510082, 1589560, 1713040, 1725808, 1772035, 1827994, 2089136, 2157260, 2480849, 2611420, 2835256, 3020164, 3179120, 3544070, 3655988, 3775205, 4314520, 4569985, 4961698, 5222840, 5670512, 6040328, 7088140, 7311976, 7550410, 8629040, 9139970, 9923396, 10445680, 12080656, 12404245, 14176280, 14623952, 15100820, 17365943, 18279940, 19846792, 24808490, 28352560, 30201640, 34731886, 36559880, 39693584, 49616980, 60403280, 69463772, 73119760, 86829715, 99233960, 138927544, 173659430, 198467920, 277855088, 347318860, 694637720, 1389275440]

約数ペア:

[(1, 1389275440), (2, 694637720), (4, 347318860), (5, 277855088), (7, 198467920), (8, 173659430), (10, 138927544), (14, 99233960), (16, 86829715), (19, 73119760), (20, 69463772), (23, 60403280), (28, 49616980), (35, 39693584), (38, 36559880), (40, 34731886), (46, 30201640), (49, 28352560), (56, 24808490), (70, 19846792), (76, 18279940), (80, 17365943), (92, 15100820), (95, 14623952), (98, 14176280), (112, 12404245), (115, 12080656), (133, 10445680), (140, 9923396), (152, 9139970), (161, 8629040), (184, 7550410), (190, 7311976), (196, 7088140), (230, 6040328), (245, 5670512), (266, 5222840), (280, 4961698), (304, 4569985), (322, 4314520), (368, 3775205), (380, 3655988), (392, 3544070), (437, 3179120), (460, 3020164), (490, 2835256), (532, 2611420), (560, 2480849), (644, 2157260), (665, 2089136), (760, 1827994), (784, 1772035), (805, 1725808), (811, 1713040), (874, 1589560), (920, 1510082), (931, 1492240), (980, 1417628), (1064, 1305710), (1127, 1232720), (1288, 1078630), (1330, 1044568), (1520, 913997), (1610, 862904), (1622, 856520), (1748, 794780), (1840, 755041), (1862, 746120), (1960, 708814), (2128, 652855), (2185, 635824), (2254, 616360), (2576, 539315), (2660, 522284), (3059, 454160), (3220, 431452), (3244, 428260), (3496, 397390), (3724, 373060), (3920, 354407), (4055, 342608), (4370, 317912), (4508, 308180), (4655, 298448), (5320, 261142), (5635, 246544), (5677, 244720), (6118, 227080), (6440, 215726), (6488, 214130), (6992, 198695), (7448, 186530), (8110, 171304), (8740, 158956), (9016, 154090), (9310, 149224), (10640, 130571), (11270, 123272), (11354, 122360), (12236, 113540), (12880, 107863), (12976, 107065), (14896, 93265), (15295, 90832), (15409, 90160), (16220, 85652), (17480, 79478), (18032, 77045), (18620, 74612), (18653, 74480), (21413, 64880), (22540, 61636), (22708, 61180), (24472, 56770), (28385, 48944), (30590, 45416), (30818, 45080), (32440, 42826), (34960, 39739), (37240, 37306)]