81338115

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{1039}}^1$

素因数の和:1371

約数の個数: 32

約数和(自身を含む): 138378240

約数和(自身を除く): 57040125

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 307, 921, 1039, 1535, 3117, 4605, 5195, 5219, 15585, 15657, 17663, 26095, 52989, 78285, 88315, 264945, 318973, 956919, 1594865, 4784595, 5422541, 16267623, 27112705, 81338115]

約数ペア:

[(1, 81338115), (3, 27112705), (5, 16267623), (15, 5422541), (17, 4784595), (51, 1594865), (85, 956919), (255, 318973), (307, 264945), (921, 88315), (1039, 78285), (1535, 52989), (3117, 26095), (4605, 17663), (5195, 15657), (5219, 15585)]