28278580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{743}}^1$

素因数の和:936

約数の個数: 48

約数和(自身を含む): 65245824

約数和(自身を除く): 36967244

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 173, 220, 346, 692, 743, 865, 1486, 1730, 1903, 2972, 3460, 3715, 3806, 7430, 7612, 8173, 9515, 14860, 16346, 19030, 32692, 38060, 40865, 81730, 128539, 163460, 257078, 514156, 642695, 1285390, 1413929, 2570780, 2827858, 5655716, 7069645, 14139290, 28278580]

約数ペア:

[(1, 28278580), (2, 14139290), (4, 7069645), (5, 5655716), (10, 2827858), (11, 2570780), (20, 1413929), (22, 1285390), (44, 642695), (55, 514156), (110, 257078), (173, 163460), (220, 128539), (346, 81730), (692, 40865), (743, 38060), (865, 32692), (1486, 19030), (1730, 16346), (1903, 14860), (2972, 9515), (3460, 8173), (3715, 7612), (3806, 7430)]