1981605

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 3542400

約数和(自身を除く): 1560795

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 323, 409, 969, 1227, 1615, 2045, 4845, 6135, 6953, 7771, 20859, 23313, 34765, 38855, 104295, 116565, 132107, 396321, 660535, 1981605]

約数ペア:

[(1, 1981605), (3, 660535), (5, 396321), (15, 132107), (17, 116565), (19, 104295), (51, 38855), (57, 34765), (85, 23313), (95, 20859), (255, 7771), (285, 6953), (323, 6135), (409, 4845), (969, 2045), (1227, 1615)]