72015225

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{521}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 126866880

約数和(自身を除く): 54851655

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 97, 285, 291, 475, 485, 521, 1425, 1455, 1563, 1843, 2425, 2605, 5529, 7275, 7815, 9215, 9899, 13025, 27645, 29697, 39075, 46075, 49495, 50537, 138225, 148485, 151611, 247475, 252685, 742425, 758055, 960203, 1263425, 2880609, 3790275, 4801015, 14403045, 24005075, 72015225]

約数ペア:

[(1, 72015225), (3, 24005075), (5, 14403045), (15, 4801015), (19, 3790275), (25, 2880609), (57, 1263425), (75, 960203), (95, 758055), (97, 742425), (285, 252685), (291, 247475), (475, 151611), (485, 148485), (521, 138225), (1425, 50537), (1455, 49495), (1563, 46075), (1843, 39075), (2425, 29697), (2605, 27645), (5529, 13025), (7275, 9899), (7815, 9215)]