81303145

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{211177}}^1$

素因数の和:211200

約数の個数: 16

約数和(自身を含む): 121638528

約数和(自身を除く): 40335383

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 211177, 1055885, 1478239, 2322947, 7391195, 11614735, 16260629, 81303145]

約数ペア:

[(1, 81303145), (5, 16260629), (7, 11614735), (11, 7391195), (35, 2322947), (55, 1478239), (77, 1055885), (385, 211177)]