251377980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:181

約数の個数: 288

約数和(自身を含む): 907737600

約数和(自身を除く): 656359620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 19, 20, 21, 28, 30, 34, 35, 38, 42, 51, 57, 60, 68, 70, 76, 84, 85, 95, 102, 105, 109, 114, 119, 133, 140, 170, 190, 204, 210, 218, 228, 238, 255, 266, 285, 289, 323, 327, 340, 357, 380, 399, 420, 436, 476, 510, 532, 545, 570, 578, 595, 646, 654, 665, 714, 763, 798, 867, 969, 1020, 1090, 1140, 1156, 1190, 1292, 1308, 1330, 1428, 1445, 1526, 1596, 1615, 1635, 1734, 1785, 1853, 1938, 1995, 2023, 2071, 2180, 2261, 2289, 2380, 2660, 2890, 3052, 3230, 3270, 3468, 3570, 3706, 3815, 3876, 3990, 4046, 4142, 4335, 4522, 4578, 4845, 5491, 5559, 5780, 6069, 6213, 6460, 6540, 6783, 7140, 7412, 7630, 7980, 8092, 8284, 8670, 9044, 9156, 9265, 9690, 10115, 10355, 10982, 11118, 11305, 11445, 12138, 12426, 12971, 13566, 14497, 15260, 16473, 17340, 18530, 19380, 20230, 20710, 21964, 22236, 22610, 22890, 24276, 24852, 25942, 27132, 27455, 27795, 28994, 30345, 31065, 31501, 32946, 33915, 35207, 37060, 38437, 38913, 40460, 41420, 43491, 45220, 45780, 51884, 54910, 55590, 57988, 60690, 62130, 63002, 64855, 65892, 67830, 70414, 72485, 76874, 77826, 82365, 86982, 94503, 105621, 109820, 111180, 115311, 121380, 124260, 126004, 129710, 135660, 140828, 144970, 153748, 155652, 157505, 164730, 173964, 176035, 189006, 192185, 194565, 211242, 217455, 220507, 230622, 246449, 259420, 289940, 315010, 329460, 352070, 378012, 384370, 389130, 422484, 434910, 441014, 461244, 472515, 492898, 528105, 576555, 598519, 630020, 661521, 704140, 739347, 768740, 778260, 869820, 882028, 945030, 985796, 1056210, 1102535, 1153110, 1197038, 1232245, 1323042, 1478694, 1795557, 1890060, 2112420, 2205070, 2306220, 2394076, 2464490, 2646084, 2957388, 2992595, 3307605, 3591114, 3696735, 4189633, 4410140, 4928980, 5985190, 6615210, 7182228, 7393470, 8379266, 8977785, 11970380, 12568899, 13230420, 14786940, 16758532, 17955570, 20948165, 25137798, 35911140, 41896330, 50275596, 62844495, 83792660, 125688990, 251377980]

約数ペア:

[(1, 251377980), (2, 125688990), (3, 83792660), (4, 62844495), (5, 50275596), (6, 41896330), (7, 35911140), (10, 25137798), (12, 20948165), (14, 17955570), (15, 16758532), (17, 14786940), (19, 13230420), (20, 12568899), (21, 11970380), (28, 8977785), (30, 8379266), (34, 7393470), (35, 7182228), (38, 6615210), (42, 5985190), (51, 4928980), (57, 4410140), (60, 4189633), (68, 3696735), (70, 3591114), (76, 3307605), (84, 2992595), (85, 2957388), (95, 2646084), (102, 2464490), (105, 2394076), (109, 2306220), (114, 2205070), (119, 2112420), (133, 1890060), (140, 1795557), (170, 1478694), (190, 1323042), (204, 1232245), (210, 1197038), (218, 1153110), (228, 1102535), (238, 1056210), (255, 985796), (266, 945030), (285, 882028), (289, 869820), (323, 778260), (327, 768740), (340, 739347), (357, 704140), (380, 661521), (399, 630020), (420, 598519), (436, 576555), (476, 528105), (510, 492898), (532, 472515), (545, 461244), (570, 441014), (578, 434910), (595, 422484), (646, 389130), (654, 384370), (665, 378012), (714, 352070), (763, 329460), (798, 315010), (867, 289940), (969, 259420), (1020, 246449), (1090, 230622), (1140, 220507), (1156, 217455), (1190, 211242), (1292, 194565), (1308, 192185), (1330, 189006), (1428, 176035), (1445, 173964), (1526, 164730), (1596, 157505), (1615, 155652), (1635, 153748), (1734, 144970), (1785, 140828), (1853, 135660), (1938, 129710), (1995, 126004), (2023, 124260), (2071, 121380), (2180, 115311), (2261, 111180), (2289, 109820), (2380, 105621), (2660, 94503), (2890, 86982), (3052, 82365), (3230, 77826), (3270, 76874), (3468, 72485), (3570, 70414), (3706, 67830), (3815, 65892), (3876, 64855), (3990, 63002), (4046, 62130), (4142, 60690), (4335, 57988), (4522, 55590), (4578, 54910), (4845, 51884), (5491, 45780), (5559, 45220), (5780, 43491), (6069, 41420), (6213, 40460), (6460, 38913), (6540, 38437), (6783, 37060), (7140, 35207), (7412, 33915), (7630, 32946), (7980, 31501), (8092, 31065), (8284, 30345), (8670, 28994), (9044, 27795), (9156, 27455), (9265, 27132), (9690, 25942), (10115, 24852), (10355, 24276), (10982, 22890), (11118, 22610), (11305, 22236), (11445, 21964), (12138, 20710), (12426, 20230), (12971, 19380), (13566, 18530), (14497, 17340), (15260, 16473)]