81511664

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{5849}}^1$

素因数の和:5937

約数の個数: 40

約数和(自身を含む): 172645200

約数和(自身を除く): 91133536

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 871, 1072, 1742, 3484, 5849, 6968, 11698, 13936, 23396, 46792, 76037, 93584, 152074, 304148, 391883, 608296, 783766, 1216592, 1567532, 3135064, 5094479, 6270128, 10188958, 20377916, 40755832, 81511664]

約数ペア:

[(1, 81511664), (2, 40755832), (4, 20377916), (8, 10188958), (13, 6270128), (16, 5094479), (26, 3135064), (52, 1567532), (67, 1216592), (104, 783766), (134, 608296), (208, 391883), (268, 304148), (536, 152074), (871, 93584), (1072, 76037), (1742, 46792), (3484, 23396), (5849, 13936), (6968, 11698)]