205989885

素因数分解:

$3^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1823}}^1$

素因数の和:1877

約数の個数: 56

約数和(自身を含む): 382777344

約数和(自身を除く): 176787459

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 243, 279, 405, 465, 729, 837, 1215, 1395, 1823, 2511, 3645, 4185, 5469, 7533, 9115, 12555, 16407, 22599, 27345, 37665, 49221, 56513, 82035, 112995, 147663, 169539, 246105, 282565, 442989, 508617, 738315, 847695, 1328967, 1525851, 2214945, 2543085, 4577553, 6644835, 7629255, 13732659, 22887765, 41197977, 68663295, 205989885]

約数ペア:

[(1, 205989885), (3, 68663295), (5, 41197977), (9, 22887765), (15, 13732659), (27, 7629255), (31, 6644835), (45, 4577553), (81, 2543085), (93, 2214945), (135, 1525851), (155, 1328967), (243, 847695), (279, 738315), (405, 508617), (465, 442989), (729, 282565), (837, 246105), (1215, 169539), (1395, 147663), (1823, 112995), (2511, 82035), (3645, 56513), (4185, 49221), (5469, 37665), (7533, 27345), (9115, 22599), (12555, 16407)]