256945905

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{111959}}^1$

素因数の和:111990

約数の個数: 32

約数和(自身を含む): 483667200

約数和(自身を除く): 226721295

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 111959, 335877, 559795, 1007631, 1679385, 1903303, 3022893, 5038155, 5709909, 9516515, 15114465, 17129727, 28549545, 51389181, 85648635, 256945905]

約数ペア:

[(1, 256945905), (3, 85648635), (5, 51389181), (9, 28549545), (15, 17129727), (17, 15114465), (27, 9516515), (45, 5709909), (51, 5038155), (85, 3022893), (135, 1903303), (153, 1679385), (255, 1007631), (459, 559795), (765, 335877), (2295, 111959)]