20439744

素因数分解:

$2^6\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:478

約数の個数: 112

約数和(自身を含む): 61447680

約数和(自身を除く): 41007936

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 32, 38, 39, 48, 52, 57, 64, 76, 78, 96, 104, 114, 152, 156, 192, 208, 228, 247, 304, 312, 416, 431, 456, 494, 608, 624, 741, 832, 862, 912, 988, 1216, 1248, 1293, 1482, 1724, 1824, 1976, 2496, 2586, 2964, 3448, 3648, 3952, 5172, 5603, 5928, 6896, 7904, 8189, 10344, 11206, 11856, 13792, 15808, 16378, 16809, 20688, 22412, 23712, 24567, 27584, 32756, 33618, 41376, 44824, 47424, 49134, 65512, 67236, 82752, 89648, 98268, 106457, 131024, 134472, 179296, 196536, 212914, 262048, 268944, 319371, 358592, 393072, 425828, 524096, 537888, 638742, 786144, 851656, 1075776, 1277484, 1572288, 1703312, 2554968, 3406624, 5109936, 6813248, 10219872, 20439744]

約数ペア:

[(1, 20439744), (2, 10219872), (3, 6813248), (4, 5109936), (6, 3406624), (8, 2554968), (12, 1703312), (13, 1572288), (16, 1277484), (19, 1075776), (24, 851656), (26, 786144), (32, 638742), (38, 537888), (39, 524096), (48, 425828), (52, 393072), (57, 358592), (64, 319371), (76, 268944), (78, 262048), (96, 212914), (104, 196536), (114, 179296), (152, 134472), (156, 131024), (192, 106457), (208, 98268), (228, 89648), (247, 82752), (304, 67236), (312, 65512), (416, 49134), (431, 47424), (456, 44824), (494, 41376), (608, 33618), (624, 32756), (741, 27584), (832, 24567), (862, 23712), (912, 22412), (988, 20688), (1216, 16809), (1248, 16378), (1293, 15808), (1482, 13792), (1724, 11856), (1824, 11206), (1976, 10344), (2496, 8189), (2586, 7904), (2964, 6896), (3448, 5928), (3648, 5603), (3952, 5172)]