81678896

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{5861}}^1$

素因数の和:5949

約数の個数: 40

約数和(自身を含む): 172999344

約数和(自身を除く): 91320448

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 871, 1072, 1742, 3484, 5861, 6968, 11722, 13936, 23444, 46888, 76193, 93776, 152386, 304772, 392687, 609544, 785374, 1219088, 1570748, 3141496, 5104931, 6282992, 10209862, 20419724, 40839448, 81678896]

約数ペア:

[(1, 81678896), (2, 40839448), (4, 20419724), (8, 10209862), (13, 6282992), (16, 5104931), (26, 3141496), (52, 1570748), (67, 1219088), (104, 785374), (134, 609544), (208, 392687), (268, 304772), (536, 152386), (871, 93776), (1072, 76193), (1742, 46888), (3484, 23444), (5861, 13936), (6968, 11722)]