12881980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10559}}^1$

素因数の和:10629

約数の個数: 24

約数和(自身を含む): 27498240

約数和(自身を除く): 14616260

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 10559, 21118, 42236, 52795, 105590, 211180, 644099, 1288198, 2576396, 3220495, 6440990, 12881980]

約数ペア:

[(1, 12881980), (2, 6440990), (4, 3220495), (5, 2576396), (10, 1288198), (20, 644099), (61, 211180), (122, 105590), (244, 52795), (305, 42236), (610, 21118), (1220, 10559)]