389283855

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{7187}}^1$

素因数の和:7375

約数の個数: 32

約数和(自身を含む): 654165504

約数和(自身を除く): 264881649

約数列:

[1, 3, 5, 15, 23, 69, 115, 157, 345, 471, 785, 2355, 3611, 7187, 10833, 18055, 21561, 35935, 54165, 107805, 165301, 495903, 826505, 1128359, 2479515, 3385077, 5641795, 16925385, 25952257, 77856771, 129761285, 389283855]

約数ペア:

[(1, 389283855), (3, 129761285), (5, 77856771), (15, 25952257), (23, 16925385), (69, 5641795), (115, 3385077), (157, 2479515), (345, 1128359), (471, 826505), (785, 495903), (2355, 165301), (3611, 107805), (7187, 54165), (10833, 35935), (18055, 21561)]