81993620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{178247}}^1$

素因数の和:178279

約数の個数: 24

約数和(自身を含む): 179673984

約数和(自身を除く): 97680364

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 178247, 356494, 712988, 891235, 1782470, 3564940, 4099681, 8199362, 16398724, 20498405, 40996810, 81993620]

約数ペア:

[(1, 81993620), (2, 40996810), (4, 20498405), (5, 16398724), (10, 8199362), (20, 4099681), (23, 3564940), (46, 1782470), (92, 891235), (115, 712988), (230, 356494), (460, 178247)]