15709864545

素因数分解:

$3^4\times 5^1\times {\mathrm{38789789}}^1$

素因数の和:38789806

約数の個数: 20

約数和(自身を含む): 28161387540

約数和(自身を除く): 12451522995

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 38789789, 116369367, 193948945, 349108101, 581846835, 1047324303, 1745540505, 3141972909, 5236621515, 15709864545]

約数ペア:

[(1, 15709864545), (3, 5236621515), (5, 3141972909), (9, 1745540505), (15, 1047324303), (27, 581846835), (45, 349108101), (81, 193948945), (135, 116369367), (405, 38789789)]