28033520

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2521}}^1$

素因数の和:2673

約数の個数: 40

約数和(自身を含む): 65672880

約数和(自身を除く): 37639360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2521, 2780, 5042, 5560, 10084, 11120, 12605, 20168, 25210, 40336, 50420, 100840, 201680, 350419, 700838, 1401676, 1752095, 2803352, 3504190, 5606704, 7008380, 14016760, 28033520]

約数ペア:

[(1, 28033520), (2, 14016760), (4, 7008380), (5, 5606704), (8, 3504190), (10, 2803352), (16, 1752095), (20, 1401676), (40, 700838), (80, 350419), (139, 201680), (278, 100840), (556, 50420), (695, 40336), (1112, 25210), (1390, 20168), (2224, 12605), (2521, 11120), (2780, 10084), (5042, 5560)]