20512752

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:558

約数の個数: 80

約数和(自身を含む): 57996288

約数和(自身を除く): 37483536

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 71, 78, 104, 142, 156, 208, 213, 284, 312, 426, 463, 568, 624, 852, 923, 926, 1136, 1389, 1704, 1846, 1852, 2769, 2778, 3408, 3692, 3704, 5538, 5556, 6019, 7384, 7408, 11076, 11112, 12038, 14768, 18057, 22152, 22224, 24076, 32873, 36114, 44304, 48152, 65746, 72228, 96304, 98619, 131492, 144456, 197238, 262984, 288912, 394476, 427349, 525968, 788952, 854698, 1282047, 1577904, 1709396, 2564094, 3418792, 5128188, 6837584, 10256376, 20512752]

約数ペア:

[(1, 20512752), (2, 10256376), (3, 6837584), (4, 5128188), (6, 3418792), (8, 2564094), (12, 1709396), (13, 1577904), (16, 1282047), (24, 854698), (26, 788952), (39, 525968), (48, 427349), (52, 394476), (71, 288912), (78, 262984), (104, 197238), (142, 144456), (156, 131492), (208, 98619), (213, 96304), (284, 72228), (312, 65746), (426, 48152), (463, 44304), (568, 36114), (624, 32873), (852, 24076), (923, 22224), (926, 22152), (1136, 18057), (1389, 14768), (1704, 12038), (1846, 11112), (1852, 11076), (2769, 7408), (2778, 7384), (3408, 6019), (3692, 5556), (3704, 5538)]