128580945

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{601}}^1\times {\mathrm{839}}^1$

素因数の和:1465

約数の個数: 32

約数和(自身を含む): 218453760

約数和(自身を除く): 89872815

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 601, 839, 1803, 2517, 3005, 4195, 9015, 10217, 12585, 14263, 30651, 42789, 51085, 71315, 153255, 213945, 504239, 1512717, 2521195, 7563585, 8572063, 25716189, 42860315, 128580945]

約数ペア:

[(1, 128580945), (3, 42860315), (5, 25716189), (15, 8572063), (17, 7563585), (51, 2521195), (85, 1512717), (255, 504239), (601, 213945), (839, 153255), (1803, 71315), (2517, 51085), (3005, 42789), (4195, 30651), (9015, 14263), (10217, 12585)]