28080821780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127640099}}^1$

素因数の和:127640119

約数の個数: 24

約数和(自身を含む): 64330610400

約数和(自身を除く): 36249788620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 127640099, 255280198, 510560396, 638200495, 1276400990, 1404041089, 2552801980, 2808082178, 5616164356, 7020205445, 14040410890, 28080821780]

約数ペア:

[(1, 28080821780), (2, 14040410890), (4, 7020205445), (5, 5616164356), (10, 2808082178), (11, 2552801980), (20, 1404041089), (22, 1276400990), (44, 638200495), (55, 510560396), (110, 255280198), (220, 127640099)]