278533335

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{4057}}^1$

素因数の和:4287

約数の個数: 32

約数和(自身を含む): 467481600

約数和(自身を除く): 188948265

約数列:

[1, 3, 5, 15, 23, 69, 115, 199, 345, 597, 995, 2985, 4057, 4577, 12171, 13731, 20285, 22885, 60855, 68655, 93311, 279933, 466555, 807343, 1399665, 2422029, 4036715, 12110145, 18568889, 55706667, 92844445, 278533335]

約数ペア:

[(1, 278533335), (3, 92844445), (5, 55706667), (15, 18568889), (23, 12110145), (69, 4036715), (115, 2422029), (199, 1399665), (345, 807343), (597, 466555), (995, 279933), (2985, 93311), (4057, 68655), (4577, 60855), (12171, 22885), (13731, 20285)]