242865

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{257}}^1$

素因数の和:278

約数の個数: 32

約数和(自身を含む): 495360

約数和(自身を除く): 252495

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 257, 315, 771, 945, 1285, 1799, 2313, 3855, 5397, 6939, 8995, 11565, 16191, 26985, 34695, 48573, 80955, 242865]

約数ペア:

[(1, 242865), (3, 80955), (5, 48573), (7, 34695), (9, 26985), (15, 16191), (21, 11565), (27, 8995), (35, 6939), (45, 5397), (63, 3855), (105, 2313), (135, 1799), (189, 1285), (257, 945), (315, 771)]