209881980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{797}}^1$

素因数の和:849

約数の個数: 288

約数和(自身を含む): 836559360

約数和(自身を除く): 626677380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 19, 20, 21, 22, 28, 30, 33, 35, 36, 38, 42, 44, 45, 55, 57, 60, 63, 66, 70, 76, 77, 84, 90, 95, 99, 105, 110, 114, 126, 132, 133, 140, 154, 165, 171, 180, 190, 198, 209, 210, 220, 228, 231, 252, 266, 285, 308, 315, 330, 342, 380, 385, 396, 399, 418, 420, 462, 495, 532, 570, 627, 630, 660, 665, 684, 693, 770, 797, 798, 836, 855, 924, 990, 1045, 1140, 1155, 1197, 1254, 1260, 1330, 1386, 1463, 1540, 1594, 1596, 1710, 1881, 1980, 1995, 2090, 2310, 2391, 2394, 2508, 2660, 2772, 2926, 3135, 3188, 3420, 3465, 3762, 3985, 3990, 4180, 4389, 4620, 4782, 4788, 5579, 5852, 5985, 6270, 6930, 7173, 7315, 7524, 7970, 7980, 8767, 8778, 9405, 9564, 11158, 11955, 11970, 12540, 13167, 13860, 14346, 14630, 15143, 15940, 16737, 17534, 17556, 18810, 21945, 22316, 23910, 23940, 26301, 26334, 27895, 28692, 29260, 30286, 33474, 35068, 35865, 37620, 43835, 43890, 45429, 47820, 50211, 52602, 52668, 55790, 60572, 61369, 65835, 66948, 71730, 75715, 78903, 83685, 87670, 87780, 90858, 100422, 105204, 106001, 111580, 122738, 131505, 131670, 136287, 143460, 151430, 157806, 166573, 167370, 175340, 181716, 184107, 200844, 212002, 227145, 245476, 251055, 263010, 263340, 272574, 302860, 306845, 315612, 318003, 333146, 334740, 368214, 394515, 424004, 454290, 499719, 502110, 526020, 530005, 545148, 552321, 613690, 636006, 666292, 681435, 736428, 789030, 832865, 908580, 920535, 954009, 999438, 1004220, 1060010, 1104642, 1166011, 1227380, 1272012, 1362870, 1499157, 1578060, 1590015, 1665730, 1841070, 1908018, 1998876, 2120020, 2209284, 2332022, 2498595, 2725740, 2761605, 2998314, 3180030, 3331460, 3498033, 3682140, 3816036, 4664044, 4770045, 4997190, 5523210, 5830055, 5996628, 6360060, 6996066, 7495785, 9540090, 9994380, 10494099, 11046420, 11660110, 13992132, 14991570, 17490165, 19080180, 20988198, 23320220, 29983140, 34980330, 41976396, 52470495, 69960660, 104940990, 209881980]

約数ペア:

[(1, 209881980), (2, 104940990), (3, 69960660), (4, 52470495), (5, 41976396), (6, 34980330), (7, 29983140), (9, 23320220), (10, 20988198), (11, 19080180), (12, 17490165), (14, 14991570), (15, 13992132), (18, 11660110), (19, 11046420), (20, 10494099), (21, 9994380), (22, 9540090), (28, 7495785), (30, 6996066), (33, 6360060), (35, 5996628), (36, 5830055), (38, 5523210), (42, 4997190), (44, 4770045), (45, 4664044), (55, 3816036), (57, 3682140), (60, 3498033), (63, 3331460), (66, 3180030), (70, 2998314), (76, 2761605), (77, 2725740), (84, 2498595), (90, 2332022), (95, 2209284), (99, 2120020), (105, 1998876), (110, 1908018), (114, 1841070), (126, 1665730), (132, 1590015), (133, 1578060), (140, 1499157), (154, 1362870), (165, 1272012), (171, 1227380), (180, 1166011), (190, 1104642), (198, 1060010), (209, 1004220), (210, 999438), (220, 954009), (228, 920535), (231, 908580), (252, 832865), (266, 789030), (285, 736428), (308, 681435), (315, 666292), (330, 636006), (342, 613690), (380, 552321), (385, 545148), (396, 530005), (399, 526020), (418, 502110), (420, 499719), (462, 454290), (495, 424004), (532, 394515), (570, 368214), (627, 334740), (630, 333146), (660, 318003), (665, 315612), (684, 306845), (693, 302860), (770, 272574), (797, 263340), (798, 263010), (836, 251055), (855, 245476), (924, 227145), (990, 212002), (1045, 200844), (1140, 184107), (1155, 181716), (1197, 175340), (1254, 167370), (1260, 166573), (1330, 157806), (1386, 151430), (1463, 143460), (1540, 136287), (1594, 131670), (1596, 131505), (1710, 122738), (1881, 111580), (1980, 106001), (1995, 105204), (2090, 100422), (2310, 90858), (2391, 87780), (2394, 87670), (2508, 83685), (2660, 78903), (2772, 75715), (2926, 71730), (3135, 66948), (3188, 65835), (3420, 61369), (3465, 60572), (3762, 55790), (3985, 52668), (3990, 52602), (4180, 50211), (4389, 47820), (4620, 45429), (4782, 43890), (4788, 43835), (5579, 37620), (5852, 35865), (5985, 35068), (6270, 33474), (6930, 30286), (7173, 29260), (7315, 28692), (7524, 27895), (7970, 26334), (7980, 26301), (8767, 23940), (8778, 23910), (9405, 22316), (9564, 21945), (11158, 18810), (11955, 17556), (11970, 17534), (12540, 16737), (13167, 15940), (13860, 15143), (14346, 14630)]