31103964

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:407

約数の個数: 72

約数和(自身を含む): 81873792

約数和(自身を除く): 50769828

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 71, 86, 129, 142, 172, 213, 258, 283, 284, 387, 426, 516, 566, 639, 774, 849, 852, 1132, 1278, 1548, 1698, 2547, 2556, 3053, 3396, 5094, 6106, 9159, 10188, 12169, 12212, 18318, 20093, 24338, 27477, 36507, 36636, 40186, 48676, 54954, 60279, 73014, 80372, 109521, 109908, 120558, 146028, 180837, 219042, 241116, 361674, 438084, 723348, 863999, 1727998, 2591997, 3455996, 5183994, 7775991, 10367988, 15551982, 31103964]

約数ペア:

[(1, 31103964), (2, 15551982), (3, 10367988), (4, 7775991), (6, 5183994), (9, 3455996), (12, 2591997), (18, 1727998), (36, 863999), (43, 723348), (71, 438084), (86, 361674), (129, 241116), (142, 219042), (172, 180837), (213, 146028), (258, 120558), (283, 109908), (284, 109521), (387, 80372), (426, 73014), (516, 60279), (566, 54954), (639, 48676), (774, 40186), (849, 36636), (852, 36507), (1132, 27477), (1278, 24338), (1548, 20093), (1698, 18318), (2547, 12212), (2556, 12169), (3053, 10188), (3396, 9159), (5094, 6106)]