12881990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{117109}}^1$

素因数の和:117127

約数の個数: 16

約数和(自身を含む): 25295760

約数和(自身を除く): 12413770

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 117109, 234218, 585545, 1171090, 1288199, 2576398, 6440995, 12881990]

約数ペア:

[(1, 12881990), (2, 6440995), (5, 2576398), (10, 1288199), (11, 1171090), (22, 585545), (55, 234218), (110, 117109)]