256260915

素因数分解:

$3^4\times 5^1\times {\mathrm{632743}}^1$

素因数の和:632760

約数の個数: 20

約数和(自身を含む): 459372144

約数和(自身を除く): 203111229

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 632743, 1898229, 3163715, 5694687, 9491145, 17084061, 28473435, 51252183, 85420305, 256260915]

約数ペア:

[(1, 256260915), (3, 85420305), (5, 51252183), (9, 28473435), (15, 17084061), (27, 9491145), (45, 5694687), (81, 3163715), (135, 1898229), (405, 632743)]