12989392

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{317}}^1$

素因数の和:535

約数の個数: 40

約数和(自身を含む): 27326376

約数和(自身を除く): 14336984

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 197, 208, 317, 394, 634, 788, 1268, 1576, 2536, 2561, 3152, 4121, 5072, 5122, 8242, 10244, 16484, 20488, 32968, 40976, 62449, 65936, 124898, 249796, 499592, 811837, 999184, 1623674, 3247348, 6494696, 12989392]

約数ペア:

[(1, 12989392), (2, 6494696), (4, 3247348), (8, 1623674), (13, 999184), (16, 811837), (26, 499592), (52, 249796), (104, 124898), (197, 65936), (208, 62449), (317, 40976), (394, 32968), (634, 20488), (788, 16484), (1268, 10244), (1576, 8242), (2536, 5122), (2561, 5072), (3152, 4121)]