1640711295

素因数分解:

$3^4\times 5^1\times {\mathrm{4051139}}^1$

素因数の和:4051156

約数の個数: 20

約数和(自身を含む): 2941127640

約数和(自身を除く): 1300416345

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 4051139, 12153417, 20255695, 36460251, 60767085, 109380753, 182301255, 328142259, 546903765, 1640711295]

約数ペア:

[(1, 1640711295), (3, 546903765), (5, 328142259), (9, 182301255), (15, 109380753), (27, 60767085), (45, 36460251), (81, 20255695), (135, 12153417), (405, 4051139)]