261948960

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2040

約数の個数: 288

約数和(自身を含む): 1100736000

約数和(自身を除く): 838787040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 32, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 96, 104, 105, 112, 117, 120, 126, 130, 140, 144, 156, 160, 168, 180, 182, 195, 208, 210, 224, 234, 240, 252, 260, 273, 280, 288, 312, 315, 336, 360, 364, 390, 416, 420, 455, 468, 480, 504, 520, 546, 560, 585, 624, 630, 672, 720, 728, 780, 819, 840, 910, 936, 1008, 1040, 1092, 1120, 1170, 1248, 1260, 1365, 1440, 1456, 1560, 1638, 1680, 1820, 1872, 1999, 2016, 2080, 2184, 2340, 2520, 2730, 2912, 3120, 3276, 3360, 3640, 3744, 3998, 4095, 4368, 4680, 5040, 5460, 5997, 6240, 6552, 7280, 7996, 8190, 8736, 9360, 9995, 10080, 10920, 11994, 13104, 13993, 14560, 15992, 16380, 17991, 18720, 19990, 21840, 23988, 25987, 26208, 27986, 29985, 31984, 32760, 35982, 39980, 41979, 43680, 47976, 51974, 55972, 59970, 63968, 65520, 69965, 71964, 77961, 79960, 83958, 89955, 95952, 103948, 111944, 119940, 125937, 129935, 131040, 139930, 143928, 155922, 159920, 167916, 179910, 181909, 191904, 207896, 209895, 223888, 233883, 239880, 251874, 259870, 279860, 287856, 311844, 319840, 335832, 359820, 363818, 389805, 415792, 419790, 447776, 467766, 479760, 503748, 519740, 545727, 559720, 575712, 623688, 629685, 671664, 719640, 727636, 779610, 831584, 839580, 909545, 935532, 959520, 1007496, 1039480, 1091454, 1119440, 1169415, 1247376, 1259370, 1343328, 1439280, 1455272, 1559220, 1637181, 1679160, 1819090, 1871064, 2014992, 2078960, 2182908, 2238880, 2338830, 2494752, 2518740, 2728635, 2878560, 2910544, 3118440, 3274362, 3358320, 3638180, 3742128, 4029984, 4157920, 4365816, 4677660, 5037480, 5457270, 5821088, 6236880, 6548724, 6716640, 7276360, 7484256, 8185905, 8731632, 9355320, 10074960, 10914540, 12473760, 13097448, 14552720, 16371810, 17463264, 18710640, 20149920, 21829080, 26194896, 29105440, 32743620, 37421280, 43658160, 52389792, 65487240, 87316320, 130974480, 261948960]

約数ペア:

[(1, 261948960), (2, 130974480), (3, 87316320), (4, 65487240), (5, 52389792), (6, 43658160), (7, 37421280), (8, 32743620), (9, 29105440), (10, 26194896), (12, 21829080), (13, 20149920), (14, 18710640), (15, 17463264), (16, 16371810), (18, 14552720), (20, 13097448), (21, 12473760), (24, 10914540), (26, 10074960), (28, 9355320), (30, 8731632), (32, 8185905), (35, 7484256), (36, 7276360), (39, 6716640), (40, 6548724), (42, 6236880), (45, 5821088), (48, 5457270), (52, 5037480), (56, 4677660), (60, 4365816), (63, 4157920), (65, 4029984), (70, 3742128), (72, 3638180), (78, 3358320), (80, 3274362), (84, 3118440), (90, 2910544), (91, 2878560), (96, 2728635), (104, 2518740), (105, 2494752), (112, 2338830), (117, 2238880), (120, 2182908), (126, 2078960), (130, 2014992), (140, 1871064), (144, 1819090), (156, 1679160), (160, 1637181), (168, 1559220), (180, 1455272), (182, 1439280), (195, 1343328), (208, 1259370), (210, 1247376), (224, 1169415), (234, 1119440), (240, 1091454), (252, 1039480), (260, 1007496), (273, 959520), (280, 935532), (288, 909545), (312, 839580), (315, 831584), (336, 779610), (360, 727636), (364, 719640), (390, 671664), (416, 629685), (420, 623688), (455, 575712), (468, 559720), (480, 545727), (504, 519740), (520, 503748), (546, 479760), (560, 467766), (585, 447776), (624, 419790), (630, 415792), (672, 389805), (720, 363818), (728, 359820), (780, 335832), (819, 319840), (840, 311844), (910, 287856), (936, 279860), (1008, 259870), (1040, 251874), (1092, 239880), (1120, 233883), (1170, 223888), (1248, 209895), (1260, 207896), (1365, 191904), (1440, 181909), (1456, 179910), (1560, 167916), (1638, 159920), (1680, 155922), (1820, 143928), (1872, 139930), (1999, 131040), (2016, 129935), (2080, 125937), (2184, 119940), (2340, 111944), (2520, 103948), (2730, 95952), (2912, 89955), (3120, 83958), (3276, 79960), (3360, 77961), (3640, 71964), (3744, 69965), (3998, 65520), (4095, 63968), (4368, 59970), (4680, 55972), (5040, 51974), (5460, 47976), (5997, 43680), (6240, 41979), (6552, 39980), (7280, 35982), (7996, 32760), (8190, 31984), (8736, 29985), (9360, 27986), (9995, 26208), (10080, 25987), (10920, 23988), (11994, 21840), (13104, 19990), (13993, 18720), (14560, 17991), (15992, 16380)]