128512978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{1283}}^1$

素因数の和:1482

約数の個数: 32

約数和(自身を含む): 219101760

約数和(自身を除く): 90588782

約数列:

[1, 2, 11, 22, 29, 58, 157, 314, 319, 638, 1283, 1727, 2566, 3454, 4553, 9106, 14113, 28226, 37207, 50083, 74414, 100166, 201431, 402862, 409277, 818554, 2215741, 4431482, 5841499, 11682998, 64256489, 128512978]

約数ペア:

[(1, 128512978), (2, 64256489), (11, 11682998), (22, 5841499), (29, 4431482), (58, 2215741), (157, 818554), (314, 409277), (319, 402862), (638, 201431), (1283, 100166), (1727, 74414), (2566, 50083), (3454, 37207), (4553, 28226), (9106, 14113)]