28580656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{439}}^1$

素因数の和:773

約数の個数: 40

約数和(自身を含む): 59961440

約数和(自身を除く): 31380784

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 313, 439, 626, 878, 1252, 1756, 2504, 3512, 4069, 5008, 5707, 7024, 8138, 11414, 16276, 22828, 32552, 45656, 65104, 91312, 137407, 274814, 549628, 1099256, 1786291, 2198512, 3572582, 7145164, 14290328, 28580656]

約数ペア:

[(1, 28580656), (2, 14290328), (4, 7145164), (8, 3572582), (13, 2198512), (16, 1786291), (26, 1099256), (52, 549628), (104, 274814), (208, 137407), (313, 91312), (439, 65104), (626, 45656), (878, 32552), (1252, 22828), (1756, 16276), (2504, 11414), (3512, 8138), (4069, 7024), (5008, 5707)]