18560655

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 34145280

約数和(自身を除く): 15584625

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 79, 115, 207, 227, 237, 345, 395, 681, 711, 1035, 1135, 1185, 1817, 2043, 3405, 3555, 5221, 5451, 9085, 10215, 15663, 16353, 17933, 26105, 27255, 46989, 53799, 78315, 81765, 89665, 161397, 234945, 268995, 412459, 806985, 1237377, 2062295, 3712131, 6186885, 18560655]

約数ペア:

[(1, 18560655), (3, 6186885), (5, 3712131), (9, 2062295), (15, 1237377), (23, 806985), (45, 412459), (69, 268995), (79, 234945), (115, 161397), (207, 89665), (227, 81765), (237, 78315), (345, 53799), (395, 46989), (681, 27255), (711, 26105), (1035, 17933), (1135, 16353), (1185, 15663), (1817, 10215), (2043, 9085), (3405, 5451), (3555, 5221)]