81985095

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31963}}^1$

素因数の和:31996

約数の個数: 32

約数和(自身を含む): 153427200

約数和(自身を除く): 71442105

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 31963, 95889, 159815, 287667, 479445, 607297, 863001, 1438335, 1821891, 3036485, 4315005, 5465673, 9109455, 16397019, 27328365, 81985095]

約数ペア:

[(1, 81985095), (3, 27328365), (5, 16397019), (9, 9109455), (15, 5465673), (19, 4315005), (27, 3036485), (45, 1821891), (57, 1438335), (95, 863001), (135, 607297), (171, 479445), (285, 287667), (513, 159815), (855, 95889), (2565, 31963)]