31031280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:204

約数の個数: 240

約数和(自身を含む): 122563584

約数和(自身を除く): 91532304

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 47, 48, 56, 60, 63, 70, 72, 80, 84, 90, 94, 105, 112, 120, 126, 131, 140, 141, 144, 168, 180, 188, 210, 235, 240, 252, 262, 280, 282, 315, 329, 336, 360, 376, 393, 420, 423, 470, 504, 524, 560, 564, 630, 655, 658, 705, 720, 752, 786, 840, 846, 917, 940, 987, 1008, 1048, 1128, 1179, 1260, 1310, 1316, 1410, 1572, 1645, 1680, 1692, 1834, 1880, 1965, 1974, 2096, 2115, 2256, 2358, 2520, 2620, 2632, 2751, 2820, 2961, 3144, 3290, 3384, 3668, 3760, 3930, 3948, 4230, 4585, 4716, 4935, 5040, 5240, 5264, 5502, 5640, 5895, 5922, 6157, 6288, 6580, 6768, 7336, 7860, 7896, 8253, 8460, 9170, 9432, 9870, 10480, 11004, 11280, 11790, 11844, 12314, 13160, 13755, 14672, 14805, 15720, 15792, 16506, 16920, 18340, 18471, 18864, 19740, 22008, 23580, 23688, 24628, 26320, 27510, 29610, 30785, 31440, 33012, 33840, 36680, 36942, 39480, 41265, 43099, 44016, 47160, 47376, 49256, 55020, 55413, 59220, 61570, 66024, 73360, 73884, 78960, 82530, 86198, 92355, 94320, 98512, 110040, 110826, 118440, 123140, 129297, 132048, 147768, 165060, 172396, 184710, 215495, 220080, 221652, 236880, 246280, 258594, 277065, 295536, 330120, 344792, 369420, 387891, 430990, 443304, 492560, 517188, 554130, 646485, 660240, 689584, 738840, 775782, 861980, 886608, 1034376, 1108260, 1292970, 1477680, 1551564, 1723960, 1939455, 2068752, 2216520, 2585940, 3103128, 3447920, 3878910, 4433040, 5171880, 6206256, 7757820, 10343760, 15515640, 31031280]

約数ペア:

[(1, 31031280), (2, 15515640), (3, 10343760), (4, 7757820), (5, 6206256), (6, 5171880), (7, 4433040), (8, 3878910), (9, 3447920), (10, 3103128), (12, 2585940), (14, 2216520), (15, 2068752), (16, 1939455), (18, 1723960), (20, 1551564), (21, 1477680), (24, 1292970), (28, 1108260), (30, 1034376), (35, 886608), (36, 861980), (40, 775782), (42, 738840), (45, 689584), (47, 660240), (48, 646485), (56, 554130), (60, 517188), (63, 492560), (70, 443304), (72, 430990), (80, 387891), (84, 369420), (90, 344792), (94, 330120), (105, 295536), (112, 277065), (120, 258594), (126, 246280), (131, 236880), (140, 221652), (141, 220080), (144, 215495), (168, 184710), (180, 172396), (188, 165060), (210, 147768), (235, 132048), (240, 129297), (252, 123140), (262, 118440), (280, 110826), (282, 110040), (315, 98512), (329, 94320), (336, 92355), (360, 86198), (376, 82530), (393, 78960), (420, 73884), (423, 73360), (470, 66024), (504, 61570), (524, 59220), (560, 55413), (564, 55020), (630, 49256), (655, 47376), (658, 47160), (705, 44016), (720, 43099), (752, 41265), (786, 39480), (840, 36942), (846, 36680), (917, 33840), (940, 33012), (987, 31440), (1008, 30785), (1048, 29610), (1128, 27510), (1179, 26320), (1260, 24628), (1310, 23688), (1316, 23580), (1410, 22008), (1572, 19740), (1645, 18864), (1680, 18471), (1692, 18340), (1834, 16920), (1880, 16506), (1965, 15792), (1974, 15720), (2096, 14805), (2115, 14672), (2256, 13755), (2358, 13160), (2520, 12314), (2620, 11844), (2632, 11790), (2751, 11280), (2820, 11004), (2961, 10480), (3144, 9870), (3290, 9432), (3384, 9170), (3668, 8460), (3760, 8253), (3930, 7896), (3948, 7860), (4230, 7336), (4585, 6768), (4716, 6580), (4935, 6288), (5040, 6157), (5240, 5922), (5264, 5895), (5502, 5640)]