128561648

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{839}}^1$

素因数の和:1065

約数の個数: 40

約数和(自身を含む): 255087840

約数和(自身を除く): 126526192

約数列:

[1, 2, 4, 8, 16, 61, 122, 157, 244, 314, 488, 628, 839, 976, 1256, 1678, 2512, 3356, 6712, 9577, 13424, 19154, 38308, 51179, 76616, 102358, 131723, 153232, 204716, 263446, 409432, 526892, 818864, 1053784, 2107568, 8035103, 16070206, 32140412, 64280824, 128561648]

約数ペア:

[(1, 128561648), (2, 64280824), (4, 32140412), (8, 16070206), (16, 8035103), (61, 2107568), (122, 1053784), (157, 818864), (244, 526892), (314, 409432), (488, 263446), (628, 204716), (839, 153232), (976, 131723), (1256, 102358), (1678, 76616), (2512, 51179), (3356, 38308), (6712, 19154), (9577, 13424)]