389661505

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{1543}}^1\times {\mathrm{2971}}^1$

素因数の和:4536

約数の個数: 16

約数和(自身を含む): 495586944

約数和(自身を除く): 105925439

約数列:

[1, 5, 17, 85, 1543, 2971, 7715, 14855, 26231, 50507, 131155, 252535, 4584253, 22921265, 77932301, 389661505]

約数ペア:

[(1, 389661505), (5, 77932301), (17, 22921265), (85, 4584253), (1543, 252535), (2971, 131155), (7715, 50507), (14855, 26231)]