81702795

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{643}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 134652672

約数和(自身を除く): 52949877

約数列:

[1, 3, 5, 15, 43, 129, 197, 215, 591, 643, 645, 985, 1929, 2955, 3215, 8471, 9645, 25413, 27649, 42355, 82947, 126671, 127065, 138245, 380013, 414735, 633355, 1900065, 5446853, 16340559, 27234265, 81702795]

約数ペア:

[(1, 81702795), (3, 27234265), (5, 16340559), (15, 5446853), (43, 1900065), (129, 633355), (197, 414735), (215, 380013), (591, 138245), (643, 127065), (645, 126671), (985, 82947), (1929, 42355), (2955, 27649), (3215, 25413), (8471, 9645)]