259968285

素因数分解:

$3^4\times 5^1\times {\mathrm{641897}}^1$

素因数の和:641914

約数の個数: 20

約数和(自身を含む): 466017948

約数和(自身を除く): 206049663

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 641897, 1925691, 3209485, 5777073, 9628455, 17331219, 28885365, 51993657, 86656095, 259968285]

約数ペア:

[(1, 259968285), (3, 86656095), (5, 51993657), (9, 28885365), (15, 17331219), (27, 9628455), (45, 5777073), (81, 3209485), (135, 1925691), (405, 641897)]