258808215

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1\times {\mathrm{2617}}^1$

素因数の和:2991

約数の個数: 32

約数和(自身を含む): 437310720

約数和(自身を除く): 178502505

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 347, 1041, 1735, 2617, 5205, 6593, 7851, 13085, 19779, 32965, 39255, 49723, 98895, 149169, 248615, 745845, 908099, 2724297, 4540495, 13621485, 17253881, 51761643, 86269405, 258808215]

約数ペア:

[(1, 258808215), (3, 86269405), (5, 51761643), (15, 17253881), (19, 13621485), (57, 4540495), (95, 2724297), (285, 908099), (347, 745845), (1041, 248615), (1735, 149169), (2617, 98895), (5205, 49723), (6593, 39255), (7851, 32965), (13085, 19779)]