128420235

素因数分解:

$3^4\times 5^1\times {\mathrm{317087}}^1$

素因数の和:317104

約数の個数: 20

約数和(自身を含む): 230205888

約数和(自身を除く): 101785653

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 317087, 951261, 1585435, 2853783, 4756305, 8561349, 14268915, 25684047, 42806745, 128420235]

約数ペア:

[(1, 128420235), (3, 42806745), (5, 25684047), (9, 14268915), (15, 8561349), (27, 4756305), (45, 2853783), (81, 1585435), (135, 951261), (405, 317087)]