256212036

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{4513}}^1$

素因数の和:4625

約数の個数: 72

約数和(自身を含む): 690100320

約数和(自身を除く): 433888284

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 83, 114, 166, 171, 228, 249, 332, 342, 498, 684, 747, 996, 1494, 1577, 2988, 3154, 4513, 4731, 6308, 9026, 9462, 13539, 14193, 18052, 18924, 27078, 28386, 40617, 54156, 56772, 81234, 85747, 162468, 171494, 257241, 342988, 374579, 514482, 749158, 771723, 1028964, 1123737, 1498316, 1543446, 2247474, 3086892, 3371211, 4494948, 6742422, 7117001, 13484844, 14234002, 21351003, 28468004, 42702006, 64053009, 85404012, 128106018, 256212036]

約数ペア:

[(1, 256212036), (2, 128106018), (3, 85404012), (4, 64053009), (6, 42702006), (9, 28468004), (12, 21351003), (18, 14234002), (19, 13484844), (36, 7117001), (38, 6742422), (57, 4494948), (76, 3371211), (83, 3086892), (114, 2247474), (166, 1543446), (171, 1498316), (228, 1123737), (249, 1028964), (332, 771723), (342, 749158), (498, 514482), (684, 374579), (747, 342988), (996, 257241), (1494, 171494), (1577, 162468), (2988, 85747), (3154, 81234), (4513, 56772), (4731, 54156), (6308, 40617), (9026, 28386), (9462, 27078), (13539, 18924), (14193, 18052)]