15128225

素因数分解:

$5^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{631}}^1$

素因数の和:785

約数の個数: 24

約数和(自身を含む): 21629568

約数和(自身を除く): 6501343

約数列:

[1, 5, 7, 25, 35, 137, 175, 631, 685, 959, 3155, 3425, 4417, 4795, 15775, 22085, 23975, 86447, 110425, 432235, 605129, 2161175, 3025645, 15128225]

約数ペア:

[(1, 15128225), (5, 3025645), (7, 2161175), (25, 605129), (35, 432235), (137, 110425), (175, 86447), (631, 23975), (685, 22085), (959, 15775), (3155, 4795), (3425, 4417)]