28747815

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{809}}^1$

素因数の和:943

約数の個数: 32

約数和(自身を含む): 48522240

約数和(自身を除く): 19774425

約数列:

[1, 3, 5, 15, 23, 69, 103, 115, 309, 345, 515, 809, 1545, 2369, 2427, 4045, 7107, 11845, 12135, 18607, 35535, 55821, 83327, 93035, 249981, 279105, 416635, 1249905, 1916521, 5749563, 9582605, 28747815]

約数ペア:

[(1, 28747815), (3, 9582605), (5, 5749563), (15, 1916521), (23, 1249905), (69, 416635), (103, 279105), (115, 249981), (309, 93035), (345, 83327), (515, 55821), (809, 35535), (1545, 18607), (2369, 12135), (2427, 11845), (4045, 7107)]