20780685

素因数分解:

$3^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2609}}^1$

素因数の和:2682

約数の個数: 32

約数和(自身を含む): 37584000

約数和(自身を除く): 16803315

約数列:

[1, 3, 5, 9, 15, 27, 45, 59, 135, 177, 295, 531, 885, 1593, 2609, 2655, 7827, 7965, 13045, 23481, 39135, 70443, 117405, 153931, 352215, 461793, 769655, 1385379, 2308965, 4156137, 6926895, 20780685]

約数ペア:

[(1, 20780685), (3, 6926895), (5, 4156137), (9, 2308965), (15, 1385379), (27, 769655), (45, 461793), (59, 352215), (135, 153931), (177, 117405), (295, 70443), (531, 39135), (885, 23481), (1593, 13045), (2609, 7965), (2655, 7827)]