15999225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 30477216

約数和(自身を除く): 14477991

約数列:

[1, 3, 5, 11, 15, 25, 33, 41, 43, 55, 75, 121, 123, 129, 165, 205, 215, 275, 363, 451, 473, 605, 615, 645, 825, 1025, 1075, 1353, 1419, 1763, 1815, 2255, 2365, 3025, 3075, 3225, 4961, 5203, 5289, 6765, 7095, 8815, 9075, 11275, 11825, 14883, 15609, 19393, 24805, 26015, 26445, 33825, 35475, 44075, 58179, 74415, 78045, 96965, 124025, 130075, 132225, 213323, 290895, 372075, 390225, 484825, 639969, 1066615, 1454475, 3199845, 5333075, 15999225]

約数ペア:

[(1, 15999225), (3, 5333075), (5, 3199845), (11, 1454475), (15, 1066615), (25, 639969), (33, 484825), (41, 390225), (43, 372075), (55, 290895), (75, 213323), (121, 132225), (123, 130075), (129, 124025), (165, 96965), (205, 78045), (215, 74415), (275, 58179), (363, 44075), (451, 35475), (473, 33825), (605, 26445), (615, 26015), (645, 24805), (825, 19393), (1025, 15609), (1075, 14883), (1353, 11825), (1419, 11275), (1763, 9075), (1815, 8815), (2255, 7095), (2365, 6765), (3025, 5289), (3075, 5203), (3225, 4961)]