81292016

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:274

約数の個数: 80

約数和(自身を含む): 177592800

約数和(自身を除く): 96300784

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 61, 86, 104, 122, 149, 172, 208, 244, 298, 344, 488, 559, 596, 688, 793, 976, 1118, 1192, 1586, 1937, 2236, 2384, 2623, 3172, 3874, 4472, 5246, 6344, 6407, 7748, 8944, 9089, 10492, 12688, 12814, 15496, 18178, 20984, 25628, 30992, 34099, 36356, 41968, 51256, 68198, 72712, 83291, 102512, 118157, 136396, 145424, 166582, 236314, 272792, 333164, 390827, 472628, 545584, 666328, 781654, 945256, 1332656, 1563308, 1890512, 3126616, 5080751, 6253232, 10161502, 20323004, 40646008, 81292016]

約数ペア:

[(1, 81292016), (2, 40646008), (4, 20323004), (8, 10161502), (13, 6253232), (16, 5080751), (26, 3126616), (43, 1890512), (52, 1563308), (61, 1332656), (86, 945256), (104, 781654), (122, 666328), (149, 545584), (172, 472628), (208, 390827), (244, 333164), (298, 272792), (344, 236314), (488, 166582), (559, 145424), (596, 136396), (688, 118157), (793, 102512), (976, 83291), (1118, 72712), (1192, 68198), (1586, 51256), (1937, 41968), (2236, 36356), (2384, 34099), (2623, 30992), (3172, 25628), (3874, 20984), (4472, 18178), (5246, 15496), (6344, 12814), (6407, 12688), (7748, 10492), (8944, 9089)]