28081460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127643}}^1$

素因数の和:127663

約数の個数: 24

約数和(自身を含む): 64332576

約数和(自身を除く): 36251116

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 127643, 255286, 510572, 638215, 1276430, 1404073, 2552860, 2808146, 5616292, 7020365, 14040730, 28081460]

約数ペア:

[(1, 28081460), (2, 14040730), (4, 7020365), (5, 5616292), (10, 2808146), (11, 2552860), (20, 1404073), (22, 1276430), (44, 638215), (55, 510572), (110, 255286), (220, 127643)]