31287144

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:191

約数の個数: 128

約数和(自身を含む): 94279680

約数和(自身を除く): 62992536

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 43, 56, 61, 71, 84, 86, 122, 129, 142, 168, 172, 183, 213, 244, 258, 284, 301, 344, 366, 426, 427, 488, 497, 516, 568, 602, 732, 852, 854, 903, 994, 1032, 1204, 1281, 1464, 1491, 1704, 1708, 1806, 1988, 2408, 2562, 2623, 2982, 3053, 3416, 3612, 3976, 4331, 5124, 5246, 5964, 6106, 7224, 7869, 8662, 9159, 10248, 10492, 11928, 12212, 12993, 15738, 17324, 18318, 18361, 20984, 21371, 24424, 25986, 30317, 31476, 34648, 36636, 36722, 42742, 51972, 55083, 60634, 62952, 64113, 73272, 73444, 85484, 90951, 103944, 110166, 121268, 128226, 146888, 170968, 181902, 186233, 220332, 242536, 256452, 363804, 372466, 440664, 512904, 558699, 727608, 744932, 1117398, 1303631, 1489864, 2234796, 2607262, 3910893, 4469592, 5214524, 7821786, 10429048, 15643572, 31287144]

約数ペア:

[(1, 31287144), (2, 15643572), (3, 10429048), (4, 7821786), (6, 5214524), (7, 4469592), (8, 3910893), (12, 2607262), (14, 2234796), (21, 1489864), (24, 1303631), (28, 1117398), (42, 744932), (43, 727608), (56, 558699), (61, 512904), (71, 440664), (84, 372466), (86, 363804), (122, 256452), (129, 242536), (142, 220332), (168, 186233), (172, 181902), (183, 170968), (213, 146888), (244, 128226), (258, 121268), (284, 110166), (301, 103944), (344, 90951), (366, 85484), (426, 73444), (427, 73272), (488, 64113), (497, 62952), (516, 60634), (568, 55083), (602, 51972), (732, 42742), (852, 36722), (854, 36636), (903, 34648), (994, 31476), (1032, 30317), (1204, 25986), (1281, 24424), (1464, 21371), (1491, 20984), (1704, 18361), (1708, 18318), (1806, 17324), (1988, 15738), (2408, 12993), (2562, 12212), (2623, 11928), (2982, 10492), (3053, 10248), (3416, 9159), (3612, 8662), (3976, 7869), (4331, 7224), (5124, 6106), (5246, 5964)]