28130285

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{641}}^1$

素因数の和:844

約数の個数: 16

約数和(自身を含む): 34575552

約数和(自身を除く): 6445267

約数列:

[1, 5, 67, 131, 335, 641, 655, 3205, 8777, 42947, 43885, 83971, 214735, 419855, 5626057, 28130285]

約数ペア:

[(1, 28130285), (5, 5626057), (67, 419855), (131, 214735), (335, 83971), (641, 43885), (655, 42947), (3205, 8777)]