128835

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{409}}^1$

素因数の和:427

約数の個数: 24

約数和(自身を含む): 255840

約数和(自身を除く): 127005

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 409, 1227, 2045, 2863, 3681, 6135, 8589, 14315, 18405, 25767, 42945, 128835]

約数ペア:

[(1, 128835), (3, 42945), (5, 25767), (7, 18405), (9, 14315), (15, 8589), (21, 6135), (35, 3681), (45, 2863), (63, 2045), (105, 1227), (315, 409)]