20262045

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{439}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 14332515

約数列:

[1, 3, 5, 15, 17, 51, 85, 181, 255, 439, 543, 905, 1317, 2195, 2715, 3077, 6585, 7463, 9231, 15385, 22389, 37315, 46155, 79459, 111945, 238377, 397295, 1191885, 1350803, 4052409, 6754015, 20262045]

約数ペア:

[(1, 20262045), (3, 6754015), (5, 4052409), (15, 1350803), (17, 1191885), (51, 397295), (85, 238377), (181, 111945), (255, 79459), (439, 46155), (543, 37315), (905, 22389), (1317, 15385), (2195, 9231), (2715, 7463), (3077, 6585)]