15990645

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{487}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 28108800

約数和(自身を除く): 12118155

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 199, 487, 597, 995, 1461, 2189, 2435, 2985, 5357, 6567, 7305, 10945, 16071, 26785, 32835, 80355, 96913, 290739, 484565, 1066043, 1453695, 3198129, 5330215, 15990645]

約数ペア:

[(1, 15990645), (3, 5330215), (5, 3198129), (11, 1453695), (15, 1066043), (33, 484565), (55, 290739), (165, 96913), (199, 80355), (487, 32835), (597, 26785), (995, 16071), (1461, 10945), (2189, 7305), (2435, 6567), (2985, 5357)]